628-52-4

Basic information

• Product Name: CHROMIUM (II) ACETATE
• Synonyms: CHROMIUM (II) ACETATE;CHROMIUM (II) ACETATE DIHYDRATE;aceticacid,chromium(2+)salt;aceticacid,chromium(2+)salt,hydrate;aceticacid,chromium(2++)salt;chromium(2+)acetate;chromiumacetatehydrate;chromiumdiacetate
• CAS NO: 628-52-4
• Molecular Formula: 2C₂H₃O₂*Cr
• Molecular Weight: 170.08
• Mol File: 628-52-4.mol
• Article Data: 7

Chemical Properties

• Appearance: /
• Density: 1,79 g/cm3
• Water Solubility: slightly soluble cold H2O, readily soluble hot H2O [MER06]
• CAS DataBase Reference: CHROMIUM (II) ACETATE(CAS DataBase Reference)
• NIST Chemistry Reference: CHROMIUM (II) ACETATE(628-52-4)
• EPA Substance Registry System: CHROMIUM (II) ACETATE(628-52-4)

Safety Data

• TSCA: No
• Hazardous Substances Data: 628-52-4(Hazardous Substances Data)

Usage

Chemical Properties

deep red powder(s) or monoclinic crystal(s); easily oxidized, especially when moist, to chromic acetate; also listed as the dimer, CAS RN 14976-80-8; uses: preparation of other Cr salts, to absorb O2 in gas analyses [MER06] [ALD94]

Safety Profile

Mildly toxic by ingestion. The anhydrous acetate ignites spontaneously in air. See also CHROMIUM COMPOUNDS. When heated to decomposition it emits acrid smoke and irritating fumes.

InChI:InChI=1/C2H4O2.Cr.H2O/c1-2(3)4;;/h1H3,(H,3,4);;1H2/q;+2;/p-1

Upstream product

• 5990-10-3 chromium(II) acetate hydrate 
• 7440-47-3 chromium 
• 127-09-3 sodium acetate 
• 10025-73-7 chromium(III) chloride 
• 199620-14-9 chromium⁽⁰⁾ hexacarbonyl 
• 108-88-3 toluene 
• 1271-24-5 bis(cyclopentadienyl)chromium 
• 108-24-7 acetic anhydride 
• 91-20-3 naphthalene 
• 208-96-8 acenaphthylene 

Downstream Products

• 199620-14-9 chromium⁽⁰⁾ hexacarbonyl 
• 33409-76-6 (C₆H₅C₆H₅)2Cr⁽¹⁺⁾*Br^(1-)=(C₆H₅C₆H₅)2CrBr 
• 13601-11-1 potassium hexacyanochromate(III) 
• 36732-52-2 chromium⁽⁰⁾ hexakis(4-chlorophenyl isocyanide) 
• 16065-83-1 chromium (III) ion 
• 15531-14-3 Cr(CNC₆H₄Cl-m)6 
• 15531-15-4 Cr(CNC₆H₄CH₃-p)6 
• 18115-32-7 Cr(CNC₆H₄OCH₃-p)6 
• 17375-15-4 chromium⁽⁰⁾ hexakis(phenyl isocyanide) 
• 95148-36-0 Cr(CNC₆H₃(CH₃)Cl)6 
• 81624-18-2 rac-ethylenebis((o-hydroxyphenyl)glycine) chromium(III) complex sodium salt trihydrate 
• 292143-00-1 [Cr₂(acetato)2(N,N'-bis(2,6-xylyl)formamidinate)2(THF)2] 
• 194468-09-2 Cr(C₈H₇N₂OS₂)2 

Relevant articles and documents

Spectroscopic investigations into the binding of hydrogen sulfide to synthetic picket-fence porphyrins

The reversible binding of hydrogen sulfide (H2S) to hemeprotein sites has been attributed to several factors, likely working in concert, including the protected binding pocket environment, proximal hydrogen bond interactions, and iron ligation environment. To investigate the importance of a sterically-constrained, protected environment on sulfide reactivity with heme centers, we report here the reactivity of H2S and HS- with the picket-fence porphyrin system. Our results indicate that the picket-fence porphyrin does not bind H2S in the ferric or ferrous state. By contrast, reaction of the ferric scaffold with HS- results in reduction to the ferrous species, followed by ligation of one equivalent of HS-, as evidenced by UV-vis, NMR spectroscopy and mass spectrometry studies. Measurement of the HS- binding affinities in the picket-fence or tetraphenyl porphyrin systems revealed identical binding. Taken together, these results suggest that the protected, sterically-constrained binding pocket alone is not the primary contributor for stabilization of ferric H2S/HS- species in model systems, but that other interactions, such as hydrogen bonding, must play a critical role in facilitation of reversible interactions in ferric hemes.

Catalyzed process for producing metal carboxylates for use as animal feed supplements

A catalyzed process is disclosed for producing a polyvalent metal C2 -C3 carboxylate having the formula M(CH3 (CH2)x COO--)y, wherein M is the polyvalent metal cation that is manganese (Mn+2), cobalt (Co+2), or chromium (Cr+3), x is zero or 1 and y is an integer equal to the cationic charge of M. The polyvalent metal C2 -C3 carboxylate is prepared by admixing (i) a dry polyvalent metal compound that is an oxide, hydroxide or carbonate of Mn+2, Co+3 or Cr+3, (ii) an anhydrous C2 -C3 carboxylic acid, and (iii) a catalytic agent at a relative molar ratio of about 1:2-10:0.01-3 in the absence of an added solvent or other diluent to form a reaction mixture. The reaction mixture is heated to complete the reaction, remove the produced water and about 80 percent of the unreacted carboxylic acid. The product in residual carboxylic acid is solidified, ground and the product is recovered. The metal carboxylates can be used as biologically available and economical sources of trace metal ions for supplementation in animal diets.

Preparation of an oxy-acetyl compound

This invention provides a process for producing an oxy-acetyl compound by carbonylating an oxy-methyl compound with carbon monoxide in the presence of a rhodium catalyst, an iodine compound, and a metallic accelerator, and also in the presence of at least one compound selected from the group consisting of boron compounds, bismuth compounds, and tertiary amide compounds in the reaction system. When at least one of the bismuth or boron compound is present in the reaction system, the carbonylation reaction can proceed without precipitation of any metallic accelerator.