Cobalt acetate CAS:71-48-7

  • Product Name:Cobalt acetate
  • CAS:71-48-7
  • Molecular formula:C4H6CoO4
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Cobalt acetate CAS:71-48-7

Cobalt acetate CAS:71-48-7 Basic information

Product Name: Cobalt acetate
Synonyms: Cobalt acetate anhydrous;COBALT(II) ACETATE;COBALT ACETATE;acetatecobalteux;Aceticacid,cobalt(2+)salt;aceticacid,cobalt(2++)salt;bis(acetato)cobalt;cobalt(2+)acetate
CAS: 71-48-7
MF: C4H6CoO4
MW: 177.02
EINECS: 200-755-8
Product Categories: INORGANIC CHEMICAL ,cobalt, acetate;Organic-metal salt;Cobalt;Micro/Nanoelectronics;Solution Deposition Precursors
Mol File: 71-48-7.mol

Cobalt acetate CAS:71-48-7 Chemical Properties

density: 1.7043g/cm3
Melting point: 298 °C (dec.)(lit.)
form: Powder
Water Solubility: Soluble in waterSoluble in water, alcohol, dilute acids and pentyl acetate(tetrahydrate).
InChIKey: QAHREYKOYSIQPH-UHFFFAOYSA-L
Merck: 14,2433
Sensitive: Hygroscopic
CAS DataBase Reference: 71-48-7(CAS DataBase Reference)
EPA Substance Registry System: Acetic acid, cobalt(2+) salt (2:1) (71-48-7)


 

Tests

Specification

% HG/T 2032-1999

Results(%)

Co(CH3COO)2·4H2O ≥

98.0

98.15

Co ≥

23.41

23.44

Cl ≤

0.005

0.0005

SO4 ≤

0.01

0.0005

Fe ≤

0.001

0.0005

Cu ≤

0.005

0.0005

Water Insoluble ≤

0.02

0.02

Cobalt acetate Usage And Synthesis
UsesCobalt(II) acetate is used for bleaching and drying varnishes and laquers. Other applications are: as a foam stabilizer for beverages; in sympathetic inks; as a mineral supplement in animal feed; and as a catalyst for oxidation. It also is used in aluminum anodizing solutions.
PreparationCobalt(II) acetate is prepared by dissolving cobalt(II) carbonate or hydroxide in dilute acetic acid, followed by crystallization. Also, it may be prepared by oxidation of dicobalt octacarbonyl in the presence of acetic acid.
Chemical PropertiesViolet Crystalline Powder or Pale pink to purple Powder. Catalyzer for oxidizing dimethylbenzene, desiccant for coating, mordant for printing, accelerant for solidifying glass.

Cobalt(II) acetate is one of the compounds recommended for colouring the oxide layer formed on aluminium and its alloys by anodizing.
Physical propertiesRed-to-violet monoclinic crystals (anhydrous acetate is light pink in color); density 1.705 g/cm3; becomes anhydrous when heated at 140°C; soluble in water, alcohols and acids.
UsesSympathetic inks, paint and varnish driers, catalyst, anodizing, mineral supplement in feed additives, foam stabilizer.
DefinitionChEBI: A cobalt salt in which the cobalt metal is in the +2 oxidation state and the counter-anion is acetate.
General DescriptionRed-violet crystalline solid. Vinegar-like odor.
Air & Water ReactionsWater soluble. Deliquescent
Reactivity ProfileSalts, basic, such as Cobalt acetate, are generally soluble in water. The resulting solutions contain moderate concentrations of hydroxide ions and have pH's greater than 7.0. They react as bases to neutralize acids. These neutralizations generate heat, but less or far less than is generated by neutralization of the bases in reactivity group 10 (Bases) and the neutralization of amines. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible.
HazardMay not be used in food products (FDA).
Health HazardInhalation causes shortness of breath and coughing; permanent disability may occur. Ingestion causes pain and vomiting. Contact with eyes causes irritation. Contact with skin may cause dermatitis.
Fire HazardSpecial Hazards of Combustion Products: Toxic cobalt oxide fumes may form in fire.
Safety ProfilePoison by intravenous route. Moderately toxic by ingestion. Questionable carcinogen. Mutation data reported. See also COBALT COMPOUNDS. When heated to decomposition it emits acrid smoke and irritating fumes.


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