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Basic Information
CAS No.: 628-52-4
Name: CHROMIUM (II) ACETATE
Molecular Structure:
Molecular Structure of 628-52-4 (CHROMIUM (II) ACETATE)
Formula: C2H4 O2 . 1/2 Cr
Molecular Weight: 170.085
Synonyms: Aceticacid, chromium(2+) salt (8CI,9CI); Chromium acetate (Cr(OAc)2) (6CI); Chromiumdiacetate; Chromium(2+) acetate; Chromium(II) acetate; Chromous acetate;Parcolene 86
Density: 1.79 g/cm3
Solubility: slightly soluble cold H2O, readily soluble hot H2O [MER06]
Safety: 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.
PSA: 52.60000
LogP: 0.02760
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Chemistry

Molecular Structure of Chromous acetate (CAS NO. 628-52-4):

IUPAC Name: Chromium(2+) diacetate 
Molecular Formula: C4H6CrO4
Molecular Weight: 170.084140 g/mol
H-Bond Donor: 0
H-Bond Acceptor: 4
Canonical SMILES: CC(=O)[O-].CC(=O)[O-].[Cr+2]
InChI: InChI=1S/2C2H4O2.Cr/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2
InChIKey: LRCIYVMVWAMTKX-UHFFFAOYSA-L
Density: 1.79 g/cm3
Flash Point: 40 °C
Enthalpy of Vaporization: 23.7 kJ/mol
Boiling Point: 117.1 °C at 760 mmHg
Vapour Pressure: 13.9 mmHg at 25 °C

Toxicity Data With Reference

1.    

orl-rat LD50:11,260 mg/kg

     AIHAAP    American Industrial Hygiene Association Journal. 30 (1969),470.

Consensus Reports

Reported in EPA TSCA Inventory. Chromium and its compounds are on the Community Right-To-Know List.

Safety Profile

Safety Information of Chromous acetate (CAS NO. 628-52-4):
TSCA: No
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.

Standards and Recommendations

OSHA PEL: TWA 0.5 mg(Cr)/m3
ACGIH TLV: TWA 0.5 mg(Cr)/m3; Not Classifiable as a Carcinogen

Specification

  Chromous acetate with cas registry number of 628-52-4 is also known as Chromium diacetate ; Chromium(2+) acetate ; Chromium(II) acetate ; Acetic acid, chromium(2+) salt ; Acetic acid, chromium(2+) salt (2:1) .