Chromium(II)

DEFAULT

Chromium acetate

06.09.2022 0 Comments

chromium acetate

Chromium(III) acetate, commonly known as basic chromium acetate, describes a family of salts where the cation has the formula [Cr3O(O2CCH3)6(OH2)3]+. Otto Chemie Pvt Ltd - India Chromium acetate manufacturers – We offer high quality Chromium acetate products in best price from manufacturers Chromium. Chromium(II) acetate hydrate, also known as chromous acetate, is the coordination compound with the formula Cr2(CH3CO2)4(H2O)2. This formula is commonly.

Chromium acetate - join

Chromium(II) acetate

Names


IUPAC name Chromium(II) acetate hydrate
Other names chromous acetate, chromium diacetate, chromium(II) ethanoate
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard
PubChemCID
RTECS number
UNII
CompTox Dashboard(EPA)
InChI InChI=1S/nkc.com.pk(3)4;/h21H3,(H,3,4);/q;;+2/p-2^&#;Y Key:&#;LRCIYVMVWAMTKX-UHFFFAOYSA-L^&#;Y InChI=1/nkc.com.pk(3)4;/h21H3,(H,3,4);/q;;+2/p-2 Key:&#;LRCIYVMVWAMTKX-NUQVWONBAT
SMILES [Cr-3]([OH2+])#[Cr-3]([OH2+])([o+]c(C)o1)([o+]c(C)o2)(oc(C)[o+]3)oc(C)[o+]4
Properties
Chemical formula	C₈H₁₆Cr₂O₁₀
Molar mass	&#;g·mol⁻¹
Appearance	brick-red solid
Density	g/cm³
Melting point	dehydrates
Solubility in water	soluble in hot water, MeOH
Magnetic susceptibility (&#;)	·10⁻⁶ cm³/mol
Structure
Crystal structure	monoclinic
Coordination geometry	octahedral counting the Cr–Cr bond
Dipole moment	0 D
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	could react exothermically in air
Related compounds
Related compounds	Rh₂(OAc)₄(H₂O)₂ Cu₂(OAc)₄(H₂O)₂, molybdenum(II) acetate
Except where otherwise noted, data are given for materials in their standard state (at 25&#;°C [77&#;°F], &#;kPa). Infobox references

Chemical compound

Chromium(II) acetate hydrate, also known as chromous acetate, is the coordination compound with the formula Cr₂(CH₃CO₂)₄(H₂O)₂. This formula is commonly abbreviated Cr₂(OAc)₄(H₂O)₂. This red-coloured compound features a quadruple bond. The preparation of chromous acetate once was a standard test of the synthetic skills of students due to its sensitivity to air and the dramatic colour changes that accompany its oxidation. It exists as the dihydrate and the anhydrous forms.

Cr₂(OAc)₄(H₂O)₂ is a reddish diamagnetic powder, although diamond-shaped tabular crystals can be grown. Consistent with the fact that it is nonionic, Cr₂(OAc)₄(H₂O)₂ exhibits poor solubility in water and methanol.

Chromium(II) acetate (aqueous solution)

Structure[edit]

The Cr₂(OAc)₄(H₂O)₂ molecule contains two atoms of chromium, two ligated molecules of water, and four acetatebridging ligands. The coordination environment around each chromium atom consists of four oxygen atoms (one from each acetate ligand) in a square, one water molecule (in an axial position), and the other chromium atom (opposite the water molecule), giving each chromium centre an octahedral geometry. The chromium atoms are joined by a quadruple bond, and the molecule has D_4h symmetry (ignoring the position of the hydrogen atoms). The same basic structure is adopted by Rh₂(OAc)₄(H₂O)₂ and Cu₂(OAc)₄(H₂O)₂, although these species do not have such short M–M contacts.^[1]

The quadruple bond between the two chromium atoms arises from the overlap of four d-orbitals on each metal with the same orbitals on the other metal: the d_z² orbitals overlap to give a sigma bonding component, the d_xz and d_yz orbitals overlap to give two pi bonding components, and the d_xy orbitals give a delta bond. This quadruple bond is also confirmed by the low magnetic moment and short intermolecular distance between the two atoms of &#;±&#;&#;pm. The Cr–Cr distances are even shorter, &#;pm being the record, when the axial ligand is absent or the carboxylate is replaced with isoelectronic nitrogenous ligands.^[2]

History[edit]

Eugène-Melchior Péligot first reported a chromium(II) acetate in His material was apparently the dimeric Cr₂(OAc)₄(H₂O)₂.^[3]^[4] The unusual structure, as well as that of copper(II) acetate, was uncovered in ^[5]

Preparation[edit]

The preparation usually begins with reduction of an aqueous solution of a Cr(III) compound using zinc.^[6] The resulting blue solution is treated with sodium acetate, which results in the rapid precipitation of chromous acetate as a bright red powder.

2&#;Cr³⁺ + Zn → 2&#;Cr²⁺ + Zn²⁺

2&#;Cr²⁺ + 4&#;OAc⁻ + 2&#;H₂O → Cr₂(OAc)₄(H₂O)₂

The synthesis of Cr₂(OAc)₄(H₂O)₂ has been traditionally used to test the synthetic skills and patience of inorganic laboratory students in universities because the accidental introduction of a small amount of air into the apparatus is readily indicated by the discoloration of the otherwise bright red product.^[7] The anhydrous form of chromium(II) acetate, and also related chromium(II) carboxylates, can be prepared from chromocene:

4&#;RCO₂H + 2&#;Cr(C₅H₅)₂ → Cr₂(O₂CR)₄ + 4 C₅H₆

This method provides anhydrous derivatives in a straightforward manner.^[8]

Because it is so easily prepared, Cr₂(OAc)₄(H₂O)₂ is a starting material for other chromium(II) compounds. Also, many analogues have been prepared using other carboxylic acids in place of acetate and using different bases in place of the water.

Applications[edit]

Chromium(II) acetate has few practical applications. It has been used to dehalogenate organic compounds such as α-bromoketones and chlorohydrins.^[9] The reactions appear to proceed via 1e⁻ steps, and rearrangement products are sometimes observed.

Because the compound is a good reducing agent, it will reduce the O₂ found in air and can be used as an oxygen scrubber.

References[edit]

^Cotton, F. A.; Walton, R. A. (). Multiple Bonds Between Metal Atoms. Oxford: Oxford University Press. ISBN&#;.
^Cotton, F. A.; Hillard, E.A.; Murillo, C. A.; Zhou, H.-C. (). "After Years, A Crystalline Chromium Carboxylate with a Supershort Cr–Cr Bond". J. Am. Chem. Soc. (2): – doi/jai.
^Péligot, E.-M. (). "Sur un nouvel oxide de chrome" [On a new chromium oxide]. C. R. Acad. Sci. (in French). 19: –
^Péligot, E.-M. (). "Recherches sur le chrome" [Research on chrome]. Ann. Chim. Phys. (in French). 12: –
^Van Niekerk, J. N.; Schoening, F. R. L. (). "X-Ray Evidence for Metal-to-Metal Bonds in Cupric and Chromous Acetate". Nature. (): 36– BibcodeNaturV. doi/a0. S2CID&#;
^Ocone, L.R.; Block, B.P. (). Anhydrous Chromium(II) Acetate, Chromium(II) Acetate 1-Hydrate, and Bis(2,4-Pentanedionato)chromium(II). Inorg. Synth. Inorganic Syntheses. Vol.&#;8. pp.&#;– doi/ch ISBN&#;.
^Jolly, W. L. (). The Synthesis and Characterization of Inorganic Compounds. Prentice Hall. pp.&#;–
^Beneš, L.; Kalousová, J.; Votinský, J. (). "Reaction of Chromocene with Carboxylic Acids and Some Derivatives of Acetic Acid". J. Organomet. Chem. (2): – doi/X(85)
^Ray, T. (). "Chromium(II) Acetate". In Paquette, L. (ed.). Encyclopedia of Reagents for Organic Synthesis. New York, NY: J. Wiley & Sons. doi/X. hdl/ ISBN&#;.

External links[edit]

Record InformationVersionCreation Date UTCUpdate Date UTCAccession NumberT3DIdentificationCommon NameChromium(III) acetateClassSmall MoleculeDescriptionChromium(III) acetate is a chemical compound of chromium. Chromium is a chemical element which has the symbol Cr and atomic number It is found naturally occuring in rocks, animals, plants, and soil, and is usually mined as chromite ore. Chromium is most toxic in its +6 oxidation state (chromium(VI)) due to its greater ability to enter cells and higher redox potential. Trivalent chromium (chromium(III)) however, is biologically necessary for sugar and lipid metabolism in humans. (6)Compound Type

Chromium Compound
Industrial/Workplace Toxin
Organic Compound
Organometallic
Pollutant
Synthetic Compound

Chemical Structure

Synonyms

Synonym
Acetic acid, chromium salt, basic
Acetic acid, chromium(3+) salt
Chromic acetate
Chromic(III) acetate
Chromium (III) acetate
Chromium acetate
Chromium acetate (Cr(AcO)3)
Chromium acetate hydroxide
Chromium acetate, basic
Chromium triacetate
chromium(3+) triacetate
Chromium(III) acetic acid
Europium metavanadate

Chemical FormulaC₆H₉CrO₆Average Molecular Mass g/molMonoisotopic Mass g/molCAS Registry NumberIUPAC Namebis(acetyloxy)chromio acetateTraditional Namechromic acetateSMILESCC(=O)O[Cr](OC(C)=O)OC(C)=OInChI IdentifierInChI=1S/nkc.com.pk*(3)4;/h3*1H3,(H,3,4);/q;;;+3/p-3InChI KeyInChIKey=WYYQVWLEPYFFLP-UHFFFAOYSA-KChemical TaxonomyDescription belongs to the class of organic compounds known as carboxylic acids. Carboxylic acids are compounds containing a carboxylic acid group with the formula -C(=O)OH.KingdomOrganic compounds Super ClassOrganic acids and derivatives ClassCarboxylic acids and derivatives Sub ClassCarboxylic acids Direct ParentCarboxylic acids Alternative ParentsSubstituents

Monocarboxylic acid or derivatives
Carboxylic acid
Organic oxygen compound
Organic oxide
Hydrocarbon derivative
Organic salt
Organooxygen compound
Carbonyl group
Aliphatic acyclic compound

Molecular FrameworkNot AvailableExternal DescriptorsNot AvailableBiological PropertiesStatusDetected and Not QuantifiedOriginExogenousCellular LocationsBiofluid LocationsNot AvailableTissue LocationsNot AvailablePathwaysNot AvailableApplicationsNot AvailableBiological RolesNot AvailableChemical RolesNot AvailablePhysical PropertiesStateSolidAppearanceWhite powder.Experimental Properties

Property	Value
Melting Point	Not Available
Boiling Point	Not Available
Solubility	Not Available
LogP	Not Available

Predicted PropertiesSpectraSpectra

Spectrum Type	Description	Splash Key	View
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splashic24b3fce1a6fbb3	JSpectraViewer
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splashoredf5ff3e2befad8d89c4	JSpectraViewer
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splashd63d84cffd51d1dbdd8	JSpectraViewer
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splashif93cda97dd9ecd8d	JSpectraViewer
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splashrff9fbdce5a19c	JSpectraViewer
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splasha4iea1ffebce99	JSpectraViewer

Toxicity ProfileRoute of ExposureOral (5) ; inhalation (5) ; dermal (5)Mechanism of ToxicityTrivalent chromium may also form complexes with peptides, proteins, and DNA, resulting in DNA-protein crosslinks, DNA strand breaks, DNA-DNA interstrand crosslinks, chromium-DNA adducts, chromosomal aberrations and alterations in cellular signaling pathways. It has been shown to induce carcinogenesis by overstimulating cellular regulatory pathways and increasing peroxide levels by activating certain mitogen-activated protein kinases. It can also cause transcriptional repression by cross-linking histone deacetylase 1-DNA methyltransferase 1 complexes to CYP1A1 promoter chromatin, inhibiting histone modification. Chromium may increase its own toxicity by modifying metal regulatory transcription factor 1, causing the inhibition of zinc-induced metallothionein transcription. (1, 5, 2, 3, 4)MetabolismChromium is absorbed from oral, inhalation, or dermal exposure and distributes to nearly all tissues, with the highest concentrations found in kidney and liver. Bone is also a major storage site and may contribute to long-term retention. Hexavalent chromium's similarity to sulfate and chromate allow it to be transported into cells via sulfate transport mechanisms. Inside the cell, hexavalent chromium is reduced first to pentavalent chromium, then to trivalent chromium by many substances including ascorbate, glutathione, and nicotinamide adenine dinucleotide. Chromium is almost entirely excreted with the urine. (1, 5)Toxicity ValuesLD mg/kg/day (Oral, Rat) (5)Lethal DoseNot AvailableCarcinogenicity (IARC Classification)3, not classifiable as to its carcinogenicity to humans. (7)Uses/SourcesNot AvailableMinimum Risk LevelNot AvailableHealth EffectsChromium in its trivalent state is not very toxic. It may be oxidized to hexavalent chromium, a known carcinogen. Hexavalent chromium has also been shown to affect reproduction and development. (1)SymptomsChromium in its trivalent state is not very toxic, but it may be oxidized to hexavalent chromium. Breathing hexavalent chromium can cause irritation to the lining of the nose, nose ulcers, runny nose, and breathing problems, such as asthma, cough, shortness of breath, or wheezing. Ingestion of hexavalent chromium causes irritation and ulcers in the stomach and small intestine, as well as anemia. Skin contact can cause skin ulcers. (5)TreatmentThere is no know antidote for chromium poisoning. Exposure is usually handled with symptomatic treatment. (5) Normal ConcentrationsNot AvailableAbnormal ConcentrationsNot AvailableExternal LinksDrugBank IDNot AvailableHMDB IDNot AvailablePubChem Compound ID ChEMBL IDNot AvailableChemSpider ID KEGG IDNot AvailableUniProt IDNot AvailableOMIM IDChEBI IDNot AvailableBioCyc IDNot AvailableCTD IDNot AvailableStitch IDChromium(III) acetate PDB IDNot AvailableACToR IDWikipedia LinkNot AvailableReferencesSynthesis ReferenceNot AvailableMSDST3DpdfGeneral References

Salnikow K, Zhitkovich A: Genetic and epigenetic mechanisms in metal carcinogenesis and cocarcinogenesis: nickel, arsenic, and chromium. Chem Res Toxicol. Jan;21(1) Epub Oct [ ]
Kim G, Yurkow EJ: Chromium induces a persistent activation of mitogen-activated protein kinases by a redox-sensitive mechanism in H4 rat hepatoma cells. Cancer Res. May 1;56(9) [ ]
Schnekenburger M, Talaska G, Puga A: Chromium cross-links histone deacetylase 1-DNA methyltransferase 1 complexes to chromatin, inhibiting histone-remodeling marks critical for transcriptional activation. Mol Cell Biol. Oct;27(20) Epub Aug 6. [ ]
Kimura T: [Molecular mechanism involved in chromium(VI) toxicity]. Yakugaku Zasshi. Dec;(12) [ ]
ATSDR - Agency for Toxic Substances and Disease Registry (). Toxicological profile for chromium. U.S. Public Health Service in collaboration with U.S. Environmental Protection Agency (EPA). [Link]
Wikipedia. Chromium. Last Updated 5 March [Link]
International Agency for Research on Cancer (). IARC Monographs on the Evaluation of Carcinogenic Risks to Humans. [Link]

Gene RegulationUp-Regulated GenesNot AvailableDown-Regulated GenesNot Available

Coordination compounds

Chromium Acetate

Chromium Acetate is a moderately water soluble crystalline Chromium source that decomposes to Chromium oxide on heating. It is generally immediately available in most volumes. All metallic acetatesare inorganic saltscontaining a metal cation and the acetate anion, a univalent (-1 charge) polyatomic ion composed of two carbon atoms ionically bound to three hydrogen and two oxygen atoms (Symbol: CH3COO) for a total formula weight of Acetates are excellent precursors for production of ultra high puritycompounds, catalysts, and nanoscale nkc.com.pk also produce Chromium Acetate Solution. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USPand EP/BP(European Pharmacopoeia/British Pharmacopoeia)and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculatorfor converting relevant units of measurement.

CNA - Preparation method of chromium acetate - Google Patents

Preparation method of chromium acetate Download PDF

Info

Publication number: CNA
Authority: CN; China
Prior art keywords: preparation; initiator; chromium; chromium acetate; acetic acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Pending

Application number

Other languages

Chinese (zh)

Inventor

张富强

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Tianjin Chemical Reagent Research Institute

Original Assignee

Tianjin Chemical Reagent Research Institute

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

Filing date

Publication date

Application filed by Tianjin Chemical Reagent Research InstitutefiledCriticalTianjin Chemical Reagent Research Institute

Priority to CN priorityCriticalpatent/CNA/en

Publication of CNApublicationCriticalpatent/CNA/en

Pendinglegal-statusCriticalCurrent

Abstract

Description

Claims (3)

1. the preparation method of a chromium acetate, it is characterized in that: step is as follows:

⑴ salt-forming reaction step

Acetic acid, chromic oxide, initiator, water are dropped in the reactor, under agitation be heated to 70～80 ℃ of reactions simultaneously, under agitation reacted 6 hours, stop heating, salt-forming reaction is finished, and gets crystallization;

Wherein, acetic acid: water: chromic oxide: the mol ratio of initiator is ～～1;

⑵ baking step

With Crystallization Separation among the step ⑴, obtain granular product, in ventilative up and down dry sieve, dry, sieve, get chromium acetate.

2. preparation method according to claim 1, it is characterized in that: initiator is for having H among the described step ⑴ ₂The aminated compounds of NRHN;

Wherein, R is H or C _nH _2n+1, n=1 wherein, 2,3,4,5,6.

3. preparation method according to claim 1 is characterized in that: among the described step ⑵ up and down ventilative dry sieve be stainless steel sift.

CN Preparation method of chromium acetate PendingCNA (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CN CNA (en)			Preparation method of chromium acetate

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CN CNA (en)			Preparation method of chromium acetate

Publications (1)

ID=

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CN PendingCNA (en)			Preparation method of chromium acetate

Country Status (1)

Cited By (1)

Publication number	Priority date	Publication date	Assignee	Title
CNA (en) *			四川省银河化学股份有限公司	Preparation method of chromium acetate hexahydrate

Cited By (1)

Publication number	Priority date	Publication date	Assignee	Title
CNA (en) *			四川省银河化学股份有限公司	Preparation method of chromium acetate hexahydrate

Legal Events

Date	Code	Title
C06	Publication
PB01	Publication
WD01	Invention patent application deemed withdrawn after publication
WD01	Invention patent application deemed withdrawn after publication	Application publication date:

Chromium(III) acetate

Names


IUPAC name Chromium(III) acetate hydrate
Other names chromic acetate, chromium triacetate, chromium(III) ethanoate
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard
PubChemCID
CompTox Dashboard(EPA)
InChI InChI=1/nkc.com.pk(3)4;/h21H3,(H,3,4);/q;;+2/p-2 Key:&#;LRCIYVMVWAMTKX-NUQVWONBAT
SMILES o1c(C)[o+][Cr-3]6(O23)([OH2+])([o+]c(C)o4)[o+]c(C)o[Cr-3]24([OH2+])([o+]c(C)o5)[o+]c(C)o[Cr-3]([OH2+])[o+]c(C)o6
Properties
Chemical formula	C₁₂H₃₆ClCr₃O₂₂
Molar mass	&#;g·mol⁻¹
Appearance	grayish-green to blueish-green solid
Density	g/cm³
Melting point	1,^[1]&#;°C (2,&#;°F; 1,&#;K)
Magnetic susceptibility (&#;)	·10⁻⁶ cm³/mol
Structure
Coordination geometry	octahedral
Related compounds
Related compounds	Manganese(III) acetate Iron(III) acetate
Except where otherwise noted, data are given for materials in their standard state (at 25&#;°C [77&#;°F], &#;kPa). Infobox references

Chemical compound

Chromium(III) acetate, commonly known as basic chromium acetate,^[2] describes a family of salts where the cation has the formula [Cr₃O(O₂CCH₃)₆(OH₂)₃]⁺. The trichromium cation is encountered with a variety of anions, such as chloride and nitrate. Data in the table above are for the chloride hexahydrate, [Cr₃O(O₂CCH₃)₆(OH₂)₃]Cl(H₂O)₆.

Salts of basic chromium acetate has long attracted interest because of its distinctive structure, which features octahedral Cr(III) centers, a triply bridging oxo ligand, six acetate ligands, and three aquo ligands.^[2] The same structure is shared with basic iron acetate and basic manganese acetate.^[2]^[3] Little evidence exists for a simple chromium(III) acetate, i.e. lacking the oxo ligand.^[4] Chromium(III) acetate is a blue/grey-green powder, which is soluble in water. It is still^[3] prepared according to the original procedure from ^[5]

The cation in basic iron acetateis isostructural with the cation in basic chromium acetate. Both feature octahedral metal centers conjoined by oxo and acetate bridging ligands.

References[edit]

^"Chromium (III) compounds". National Pollutant Inventory. Australian Government Department of Agriculture, Water and the Environment. Retrieved 14 April
^ ^a^b^cGreenwood, Norman N.; Earnshaw, Alan (). Chemistry of the Elements (2nd&#;ed.). Butterworth-Heinemann. ISBN&#;.
^ ^a^bKurt J. Schenk, Hans U. Güdel (). "Low-temperature structural and spectroscopic properties of [Cr₃O(CH₃COO)₆(H₂O)₃]Cl^.6H₂O". Inorg. Chem. 21 (6): – doi/ica: CS1 maint: uses authors parameter (link)
^Erre, Liliana Strinna; Micera, Giovanni; Glowiak, Tadeusz; Kozlowski, Henry (April ). "Chromium (III) Acetate, Chromium (III) Acetate Hydroxide, or µ3-Oxo-esakis-(µ2-acetato-O,O') - triaqua-trichromium (III) Acetate? Determining the Structure of a Complex Compound by Analytical and Spectroscopic Methods". Journal of Chemical Education. 74 (4): BibcodeJChEdE. doi/edp
^R. Weinland P. Dinkelacker (). "Über Salze einer Hexaacetato(formiato)‐trichrombase. II". Berichte der Deutschen Chemischen Gesellschaft. 42 (3): – doi/cber: CS1 maint: uses authors parameter (link)

Chromium acetate - remarkable, very

Chromium(III) acetate

Names


IUPAC name Chromium(III) acetate hydrate
Other names chromic acetate, chromium triacetate, chromium(III) ethanoate
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard
PubChemCID
CompTox Dashboard(EPA)
InChI InChI=1/nkc.com.pk(3)4;/h21H3,(H,3,4);/q;;+2/p-2 Key:&#;LRCIYVMVWAMTKX-NUQVWONBAT
SMILES o1c(C)[o+][Cr-3]6(O23)([OH2+])([o+]c(C)o4)[o+]c(C)o[Cr-3]24([OH2+])([o+]c(C)o5)[o+]c(C)o[Cr-3]([OH2+])[o+]c(C)o6
Properties
Chemical formula	C₁₂H₃₆ClCr₃O₂₂
Molar mass	&#;g·mol⁻¹
Appearance	grayish-green to blueish-green solid
Density	g/cm³
Melting point	1,^[1]&#;°C (2,&#;°F; 1,&#;K)
Magnetic susceptibility (&#;)	·10⁻⁶ cm³/mol
Structure
Coordination geometry	octahedral
Related compounds
Related compounds	Manganese(III) acetate Iron(III) acetate
Except where otherwise noted, data are given for materials in their standard state (at 25&#;°C [77&#;°F], &#;kPa). Infobox references

Chemical compound

The cation in basic iron acetateis isostructural with the cation in basic chromium acetate. Both feature octahedral metal centers conjoined by oxo and acetate bridging ligands.

References[edit]

^"Chromium (III) compounds". National Pollutant Inventory. Australian Government Department of Agriculture, Water and the Environment. Retrieved 14 April
^ ^a^b^cGreenwood, Norman N.; Earnshaw, Alan (). Chemistry of the Elements (2nd&#;ed.). Butterworth-Heinemann. ISBN&#;.
^ ^a^bKurt J. Schenk, Hans U. Güdel (). "Low-temperature structural and spectroscopic properties of [Cr₃O(CH₃COO)₆(H₂O)₃]Cl^.6H₂O". Inorg. Chem. 21 (6): – doi/ica: CS1 maint: uses authors parameter (link)
^Erre, Liliana Strinna; Micera, Giovanni; Glowiak, Tadeusz; Kozlowski, Henry (April ). "Chromium (III) Acetate, Chromium (III) Acetate Hydroxide, or µ3-Oxo-esakis-(µ2-acetato-O,O') - triaqua-trichromium (III) Acetate? Determining the Structure of a Complex Compound by Analytical and Spectroscopic Methods". Journal of Chemical Education. 74 (4): BibcodeJChEdE. doi/edp
^R. Weinland P. Dinkelacker (). "Über Salze einer Hexaacetato(formiato)‐trichrombase. II". Berichte der Deutschen Chemischen Gesellschaft. 42 (3): – doi/cber: CS1 maint: uses authors parameter (link)

Chromium Acetate

CNA - Preparation method of chromium acetate - Google Patents

Preparation method of chromium acetate Download PDF

Info

Publication number: CNA
Authority: CN; China
Prior art keywords: preparation; initiator; chromium; chromium acetate; acetic acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Pending

Application number

Other languages

Chinese (zh)

Inventor

张富强

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Tianjin Chemical Reagent Research Institute

Original Assignee

Tianjin Chemical Reagent Research Institute

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

Filing date

Publication date

Application filed by Tianjin Chemical Reagent Research InstitutefiledCriticalTianjin Chemical Reagent Research Institute

Priority to CN priorityCriticalpatent/CNA/en

Publication of CNApublicationCriticalpatent/CNA/en

Pendinglegal-statusCriticalCurrent

Abstract

Description

Claims (3)

1. the preparation method of a chromium acetate, it is characterized in that: step is as follows:

⑴ salt-forming reaction step

Wherein, acetic acid: water: chromic oxide: the mol ratio of initiator is ～～1;

⑵ baking step

With Crystallization Separation among the step ⑴, obtain granular product, in ventilative up and down dry sieve, dry, sieve, get chromium acetate.

2. preparation method according to claim 1, it is characterized in that: initiator is for having H among the described step ⑴ ₂The aminated compounds of NRHN;

Wherein, R is H or C _nH _2n+1, n=1 wherein, 2,3,4,5,6.

3. preparation method according to claim 1 is characterized in that: among the described step ⑵ up and down ventilative dry sieve be stainless steel sift.

CN Preparation method of chromium acetate PendingCNA (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CN CNA (en)			Preparation method of chromium acetate

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CN CNA (en)			Preparation method of chromium acetate

Publications (1)

ID=

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CN PendingCNA (en)			Preparation method of chromium acetate

Country Status (1)

Cited By (1)

Publication number	Priority date	Publication date	Assignee	Title
CNA (en) *			四川省银河化学股份有限公司	Preparation method of chromium acetate hexahydrate

Cited By (1)

Publication number	Priority date	Publication date	Assignee	Title
CNA (en) *			四川省银河化学股份有限公司	Preparation method of chromium acetate hexahydrate

Legal Events

Date	Code	Title
C06	Publication
PB01	Publication
WD01	Invention patent application deemed withdrawn after publication
WD01	Invention patent application deemed withdrawn after publication	Application publication date:

Acetates

Chromium(II) acetate

Names


IUPAC name Chromium(II) acetate hydrate
Other names chromous acetate, chromium diacetate, chromium(II) ethanoate
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard
PubChemCID
RTECS number
UNII
CompTox Dashboard(EPA)
InChI InChI=1S/nkc.com.pk(3)4;/h21H3,(H,3,4);/q;;+2/p-2^&#;Y Key:&#;LRCIYVMVWAMTKX-UHFFFAOYSA-L^&#;Y InChI=1/nkc.com.pk(3)4;/h21H3,(H,3,4);/q;;+2/p-2 Key:&#;LRCIYVMVWAMTKX-NUQVWONBAT
SMILES [Cr-3]([OH2+])#[Cr-3]([OH2+])([o+]c(C)o1)([o+]c(C)o2)(oc(C)[o+]3)oc(C)[o+]4
Properties
Chemical formula	C₈H₁₆Cr₂O₁₀
Molar mass	&#;g·mol⁻¹
Appearance	brick-red solid
Density	g/cm³
Melting point	dehydrates
Solubility in water	soluble in hot water, MeOH
Magnetic susceptibility (&#;)	·10⁻⁶ cm³/mol
Structure
Crystal structure	monoclinic
Coordination geometry	octahedral counting the Cr–Cr bond
Dipole moment	0 D
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	could react exothermically in air
Related compounds
Related compounds	Rh₂(OAc)₄(H₂O)₂ Cu₂(OAc)₄(H₂O)₂, molybdenum(II) acetate
Except where otherwise noted, data are given for materials in their standard state (at 25&#;°C [77&#;°F], &#;kPa). Infobox references

Chemical compound

Chromium(II) acetate (aqueous solution)

Structure[edit]

History[edit]

Preparation[edit]

2&#;Cr³⁺ + Zn → 2&#;Cr²⁺ + Zn²⁺

2&#;Cr²⁺ + 4&#;OAc⁻ + 2&#;H₂O → Cr₂(OAc)₄(H₂O)₂

4&#;RCO₂H + 2&#;Cr(C₅H₅)₂ → Cr₂(O₂CR)₄ + 4 C₅H₆

This method provides anhydrous derivatives in a straightforward manner.^[8]

Applications[edit]

Because the compound is a good reducing agent, it will reduce the O₂ found in air and can be used as an oxygen scrubber.

References[edit]

^Cotton, F. A.; Walton, R. A. (). Multiple Bonds Between Metal Atoms. Oxford: Oxford University Press. ISBN&#;.
^Cotton, F. A.; Hillard, E.A.; Murillo, C. A.; Zhou, H.-C. (). "After Years, A Crystalline Chromium Carboxylate with a Supershort Cr–Cr Bond". J. Am. Chem. Soc. (2): – doi/jai.
^Péligot, E.-M. (). "Sur un nouvel oxide de chrome" [On a new chromium oxide]. C. R. Acad. Sci. (in French). 19: –
^Péligot, E.-M. (). "Recherches sur le chrome" [Research on chrome]. Ann. Chim. Phys. (in French). 12: –
^Van Niekerk, J. N.; Schoening, F. R. L. (). "X-Ray Evidence for Metal-to-Metal Bonds in Cupric and Chromous Acetate". Nature. (): 36– BibcodeNaturV. doi/a0. S2CID&#;
^Ocone, L.R.; Block, B.P. (). Anhydrous Chromium(II) Acetate, Chromium(II) Acetate 1-Hydrate, and Bis(2,4-Pentanedionato)chromium(II). Inorg. Synth. Inorganic Syntheses. Vol.&#;8. pp.&#;– doi/ch ISBN&#;.
^Jolly, W. L. (). The Synthesis and Characterization of Inorganic Compounds. Prentice Hall. pp.&#;–
^Beneš, L.; Kalousová, J.; Votinský, J. (). "Reaction of Chromocene with Carboxylic Acids and Some Derivatives of Acetic Acid". J. Organomet. Chem. (2): – doi/X(85)
^Ray, T. (). "Chromium(II) Acetate". In Paquette, L. (ed.). Encyclopedia of Reagents for Organic Synthesis. New York, NY: J. Wiley & Sons. doi/X. hdl/ ISBN&#;.

External links[edit]

Chromium(II) acetate

Chromium(II) acetate, better known as chromous acetate, is the compound Cr₂(CH₃CO₂)₄(H₂O)₂. Anytoiso converter pro formula is commonly abbreviated Cr₂(OAc)₄(H₂O)₂. This compound and some of its simple derivatives illustrate one of the most remarkable properties of some metals - the ability to engage in quadruple bonds. The preparation of chromous acetate once was a standard test the synthetic skills of students due to its considerable sensitivity to air, chromium acetate. It exists as the dihydrate and the anhydrous forms.

Cr₂(OAc)₄(H₂O)₂ is a reddish diamagnetic powder, although diamond-shaped tabular crystals can be grown. Consistent with the fact that it is non-ionic, Cr₂(OAc)₄(H₂O)₂ exhibits poor solubility in water and methanol.

Structure

The Cr₂(OAc)₄(H₂O)₂ molecule contains two atoms of chromium, two ligated molecules of water, and four monoanionic acetateligands. The coordination environment around each chromium atom consists of four oxygen atoms (one from each acetate ligand) in a square, one water molecule (in an axial position), and the other chromium atom (opposite the water molecule), giving each chromium centre an octahedral geometry. The chromium atoms are joined together by a quadruple bond, and the molecule has D_4h symmetry (ignoring the position of the hydrogen atoms). The same basic structure is adopted by Rh₂(OAc)₄(H₂O)₂ and Cu₂(OAc)₄(H₂O)₂, although these species do not have such short MM contacts.^[1]

The quadruple bond between the two chromium atoms arises from the overlap of four d-orbitals on each metal with the same orbitals on the other metal: the z² orbitals overlap to give a sigma bonding component, the xz and yz orbitals overlap to give two pi bonding components, and the xy orbitals give a delta bond. This quadruple bond is also confirmed by the low magnetic moment and short intermolecular distance between the two atoms of ± nkc.com.pk Cr-Cr distances are even shorter, chromium acetate, pm being the record, when the axial ligand is absent or the carboxylate is replaced with isoelectronic nitrogenous ligands.^[2]

History

Eugene Peligot first reported a chromium(II) acetate in His material was apparently the dimeric Cr₂(OAc)₄(H₂O)₂.^[3] The unusual structure, as well as that of copper(II) acetate, was uncovered in ^[4]

Preparation

An aqueous solution of a Cr(III) compound is first reduced to the chromous state chromium acetate zinc as a reductant.^[5] The resulting chromium acetate chromous solution is treated with sodium acetate. Immediately chromous acetate precipitates as a bright red powder.

Cr⁶⁺ + 2Zn → Cr²⁺ + 2Zn²⁺

2 Cr²⁺ + 4 OAc^- + 2 H₂O → Cr₂(OAc)₄(H₂O)₂

The synthesis of Cr₂(OAc)₄(H₂O)₂ has been traditionally used to test the synthetic skills and patience of inorganic laboratory students in universities because the accidental introduction of a small amount of air into the apparatus is readily indicated by the discoloration of the otherwise bright red product.^[6] An alternative route to related chromium(II) carboxylates starts with chromocene:

4 HO₂CR + 2 Cr(C₅H₅)₂ → Cr₂(O₂CR)₄ + 4 C₅H₆

The advantage to this method is that it provides anhydrous derivatives.

Because it is so easily prepared, chromium acetate, Cr₂(OAc)₄(H₂O)₂ is often used as a starting material for other, chromium(II) compounds. Also many analogues chromium acetate been prepared using other carboxylic acids in place of acetate and using different bases in chromium acetate of the water.

Applications

Cr₂(OAc)₄(H₂O)₂ is used occasionally to dehalogenate organic compounds such as α-bromoketones and chlorohydrins.^[7] The reactions appear to proceed via 1e^- steps, and rearrangement products are sometimes observed.

Many other applications exist, including those in the polymer industry.^[8]

References

^ Cotton, F. A.; Walton, R. A. “Multiple Bonds Between Metal Atoms” Oxford (Oxford): ISBN .
^ Cotton, F. A.; Hillard, E.A.; Murillo, C. A.; Zhou, H.-C. "After Years, A Crystalline Chromium Carboxylate with a Supershort Cr-Cr Bond" Journal of the American Chemical Society, volumechromium acetate, pages doi/jai
^ Peligot, chromium acetate, E. C. R. Acad. Sci.volume 19, page ff. (b) Peligot, Chromium acetate. Ann. Chim. Phys.volume 12, pages ff.
^ van Niekerk, J. N. Schoening, F. R. L. “X-Ray Evidence for Metal-to-Metal Bonds in Cupric and Chromous Acetate” Naturevolumepages doi/a0.
^Ocone, L.R.; Block, B.P. (). Inorganic Syntheses,
^Jolly, W. L. (). The Synthesis and Characterization of Inorganic Compounds. Prentice Hall,
^ Ray, T. "Chromium(II) Acetate" in Encyclopedia of Reagents for Organic Synthesis (Ed: L. Paquette)chromium acetate, J. Wiley & Sons, New York, chromium acetate. doi/
^ Lee, M. “Graft Copolymerization of Styrene on Rubber Containing Halogen by Chromous Acetate.” Journal of Polymer Science, chromium acetate, volume 14, chromium acetate, pages

CNA - Preparation method of chromium acetate - Google Patents

Preparation method of chromium acetate Download PDF

Info

Publication number: CNA
Authority: CN; China
Prior art keywords: preparation; initiator; chromium; chromium acetate; acetic acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the chromium acetate listed.): Pending

Application number

CN chromium acetate languages

Chinese (zh)

Inventor

张富强

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Tianjin Chemical Reagent Research Institute

Original Assignee

Tianjin Chemical Reagent Research Institute

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

Filing date

Publication date

Application filed by Tianjin Chemical Reagent Research InstitutefiledCriticalTianjin Chemical Reagent Research Institute

Priority to CN priorityCriticalpatent/CNA/en

Publication of CNApublicationCriticalpatent/CNA/en

Pendinglegal-statusCriticalCurrent

Abstract

Description

Claims (3)

1. the preparation method of a chromium acetate, it is characterized in that: step is as follows:

⑴ salt-forming reaction step

Wherein, acetic acid: water: chromic oxide: the mol ratio of initiator is ～～1;

⑵ recover my files review step

With Crystallization Separation among the step ⑴, obtain granular product, in ventilative up and down dry sieve, dry, sieve, get chromium acetate.

2. preparation method chromium acetate to claim 1, chromium acetate, it is characterized in that: initiator is for having H among the described step ⑴ ₂The aminated compounds of NRHN;

Wherein, R is H or C _nH _2n+1, n=1 wherein, 2,3,4,5,6, chromium acetate.

3. preparation method according to claim 1 is characterized in that: among the described step ⑵ up and down ventilative dry chromium acetate be stainless steel sift.

CN Preparation method of chromium acetate PendingCNA (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CN Chromium acetate (en)			Preparation method of chromium acetate

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CN CNA (en)			Preparation method of chromium acetate

Publications (1)

ID=

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CN PendingCNA (en)			Preparation chromium acetate of chromium acetate

Country Status (1)

Cited By (1)

Publication number	Priority date	Publication date	Assignee	Title
CNA (en) *			四川省银河化学股份有限公司	Preparation method of chromium acetate hexahydrate

Cited By (1)

Publication number	Priority date	Publication date	Assignee	Title
CNA (en) *			四川省银河化学股份有限公司	Preparation method of chromium acetate hexahydrate

Legal Events

Date	Code	Title
C06	Publication
PB01	Publication
WD01	Invention patent application chromium acetate withdrawn after publication
WD01	Invention patent application deemed withdrawn after publication	Application publication date:

Chromium Compound
Industrial/Workplace Toxin
Organic Compound
Organometallic
Pollutant
Synthetic Compound

Chemical Magix photostory deluxe 2020 serial number Free Activators src="nkc.com.pk" alt="Thumb">

Synonyms

Synonym
Acetic acid, chromium salt, basic
Acetic acid, chromium(3+) salt
Chromic acetate
Chromic(III) acetate
Chromium (III) acetate
Chromium acetate
Chromium acetate (Cr(AcO)3)
Chromium acetate hydroxide
Chromium acetate, basic
Chromium triacetate
chromium(3+) triacetate
Chromium(III) acetic acid
Europium metavanadate

Monocarboxylic acid or derivatives
Carboxylic acid
Organic oxygen compound
Organic oxide
Hydrocarbon derivative
Organic salt
Organooxygen compound
Carbonyl group
Aliphatic acyclic compound

Molecular FrameworkNot AvailableExternal DescriptorsNot AvailableBiological PropertiesStatusDetected and Not QuantifiedOriginExogenousCellular Avira antivirus pro 2021 Activators Patch LocationsNot AvailableTissue LocationsNot AvailablePathwaysNot AvailableApplicationsNot AvailableBiological RolesNot AvailableChemical RolesNot AvailablePhysical PropertiesStateSolidAppearanceWhite powder.Experimental Properties

Property	Value
Melting Point	Not Available
Boiling Point	Not Available
Solubility	Not Available
LogP	Not Available

Predicted PropertiesSpectraSpectra

Spectrum Type	Description	Splash Key	View
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splashic24b3fce1a6fbb3	JSpectraViewer
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splashoredf5ff3e2befad8d89c4	JSpectraViewer
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splashd63d84cffd51d1dbdd8	JSpectraViewer
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splashif93cda97dd9ecd8d	JSpectraViewer
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splashrff9fbdce5a19c	JSpectraViewer
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, chromium acetate, Negative	splasha4iea1ffebce99	JSpectraViewer

Toxicity ProfileRoute of ExposureOral (5) ; inhalation (5) ; dermal (5)Mechanism of ToxicityTrivalent chromium may also form complexes with peptides, chromium acetate, proteins, and DNA, resulting in DNA-protein crosslinks, DNA strand breaks, chromium acetate, DNA-DNA interstrand crosslinks, chromium-DNA adducts, chromosomal aberrations and alterations in cellular signaling pathways. It has been shown to induce carcinogenesis chromium acetate overstimulating cellular regulatory pathways and increasing peroxide levels by activating certain mitogen-activated protein kinases, chromium acetate. It can also cause transcriptional repression by cross-linking chromium acetate deacetylase 1-DNA methyltransferase 1 complexes to CYP1A1 promoter chromatin, inhibiting histone modification. Chromium may increase its own toxicity by modifying magix movie edit pro 2019 serial number Activators Patch regulatory transcription factor 1, causing the inhibition of zinc-induced metallothionein transcription. (1, 5, 2, 3, 4)MetabolismChromium is absorbed from oral, inhalation, or dermal exposure and distributes to nearly all tissues, with the highest concentrations found in kidney and liver. Bone is also a major storage site and may contribute to long-term retention. Hexavalent chromium's similarity to sulfate and chromate allow it to be transported into cells via sulfate transport mechanisms. Inside the cell, hexavalent chromium is reduced first to pentavalent chromium, then to trivalent chromium by many substances including ascorbate, glutathione, and nicotinamide adenine dinucleotide. Chromium is almost entirely excreted with the urine. (1, 5)Toxicity ValuesLD mg/kg/day (Oral, Rat) (5)Lethal DoseNot AvailableCarcinogenicity (IARC Classification)3, not classifiable as to its carcinogenicity to humans. (7)Uses/SourcesNot AvailableMinimum Risk LevelNot AvailableHealth EffectsChromium in its trivalent state is not very toxic. It may be oxidized to hexavalent chromium, a known carcinogen. Hexavalent chromium has also been shown to affect chromium acetate and development. (1)SymptomsChromium in its trivalent state is not very toxic, but it may be oxidized to hexavalent chromium. Breathing hexavalent chromium can cause irritation to the lining of the nose, nose ulcers, runny nose, and breathing problems, such as asthma, cough, shortness of breath, or wheezing. Ingestion of hexavalent chromium causes irritation and ulcers in the stomach and small intestine, as well as anemia. Skin contact can cause skin ulcers. (5)TreatmentThere is no know antidote for chromium poisoning. Exposure is usually handled with symptomatic treatment. (5) Normal ConcentrationsNot AvailableAbnormal ConcentrationsNot AvailableExternal LinksDrugBank IDNot AvailableHMDB IDNot AvailablePubChem Compound ID ChEMBL IDNot AvailableChemSpider ID KEGG IDNot AvailableUniProt IDNot AvailableOMIM IDChEBI IDNot AvailableBioCyc IDNot AvailableCTD IDNot AvailableStitch IDChromium(III) acetate PDB IDNot AvailableACToR IDWikipedia LinkNot AvailableReferencesSynthesis ReferenceNot AvailableMSDST3DpdfGeneral References

Salnikow K, Zhitkovich A: Genetic and epigenetic mechanisms in metal carcinogenesis and cocarcinogenesis: nickel, arsenic, and chromium. Chem Res Toxicol. Jan;21(1) Epub Oct [ ]
Kim G, Yurkow EJ: Chromium induces a persistent activation of mitogen-activated protein kinases magix movie edit pro 2018 + crack full version Free Activators a redox-sensitive mechanism in H4 rat hepatoma cells. Cancer Res. May 1;56(9) [ ]
Schnekenburger M, Talaska G, Puga A: Chromium cross-links histone deacetylase 1-DNA methyltransferase 1 complexes to chromatin, inhibiting histone-remodeling marks critical for transcriptional activation. Mol Cell Biol, chromium acetate. Oct;27(20) Epub Aug 6. [ ]
Kimura T: [Molecular mechanism involved in chromium(VI) toxicity]. Yakugaku Zasshi. Dec;(12) [ ]
ATSDR - Agency for Toxic Substances and Disease Registry (). Toxicological profile for chromium. U.S. Public Health Service in collaboration with U.S. Environmental Protection Agency (EPA). [Link]
Wikipedia. Chromium. Last Updated 5 March [Link]
International Agency for Research on Cancer movavi video editor review. IARC Monographs on the Evaluation of Carcinogenic Risks to Humans. [Link]

Gene RegulationUp-Regulated GenesNot AvailableDown-Regulated GenesNot Available

Coordination compounds

Acetates

youtube video

Synthesis of chromium(II) acetate

';} ?>

Chromium acetate - join

Chromium(II) acetate

Structure[edit]

History[edit]

Preparation[edit]

Applications[edit]

See also[edit]

References[edit]

Further reading[edit]

External links[edit]

Chromium Acetate

CNA - Preparation method of chromium acetate - Google Patents

Info

Links

Abstract

Description

Claims (3)

Priority Applications (1)

Applications Claiming Priority (1)

Publications (1)

ID=

Family Applications (1)

Country Status (1)

Cited By (1)

Cited By (1)

Similar Documents

Legal Events

Chromium(III) acetate

See also[edit]

References[edit]

Chromium acetate - remarkable, very

Chromium(III) acetate

See also[edit]

References[edit]

Chromium Acetate

CNA - Preparation method of chromium acetate - Google Patents

Info

Links

Abstract

Description

Claims (3)

Priority Applications (1)

Applications Claiming Priority (1)

Publications (1)

ID=

Family Applications (1)

Country Status (1)

Cited By (1)

Cited By (1)

Similar Documents

Legal Events

Chromium(II) acetate

Structure[edit]

History[edit]

Preparation[edit]

Applications[edit]

See also[edit]

References[edit]

Further reading[edit]

External links[edit]

Chromium(II) acetate

Structure

History

Preparation

Applications

References

Further reading

CNA - Preparation method of chromium acetate - Google Patents

Info

Links

Abstract

Description

Claims (3)

Priority Applications (1)

Applications Claiming Priority (1)

Publications (1)

ID=

Family Applications (1)

Country Status (1)

Cited By (1)