Cobalt acetate Property

Melting point:

298 °C (dec.)(lit.)

Density 

1.7043g/cm3

solubility 

Aqueous Acid (Slightly), Water (Slightly)

form 

Powder

color 

Pale pink to purple

Water Solubility 

Soluble in water, alcohol, dilute acids and pentyl acetate(tetrahydrate).

Sensitive 

Hygroscopic

Merck 

14,2433

Stability:

Hygroscopic

InChIKey

QAHREYKOYSIQPH-UHFFFAOYSA-L

LogP

-0.285 (est)

CAS DataBase Reference

71-48-7(CAS DataBase Reference)

EPA Substance Registry System

Acetic acid, cobalt(2+) salt (2:1) (71-48-7)

Safety

Hazard Codes 

Xn,N,T

Risk Statements 

22-36/37/38-40-43-53-68-50/53-42/43-60-49

Safety Statements 

22-26-36/37/39-45-61-60-53

RIDADR 

UN 3077 9 / PGIII

WGK Germany 

2

RTECS 

AG3150000

TSCA 

Yes

HazardClass 

9

Hazardous Substances Data

71-48-7(Hazardous Substances Data)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H302Harmful if swallowed

H317May cause an allergic skin reaction

H319Causes serious eye irritation

H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

H341Suspected of causing genetic defects

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P308+P313IF exposed or concerned: Get medical advice/attention.

Cobalt acetate Chemical Properties,Usage,Production

Uses

Cobalt(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.

Preparation

Cobalt(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 Properties

Violet 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 properties

Red-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.

Uses

Cobalt(II) acetate is used as an industrial catalyst. It is used as a precursor to various oil drying agents. It finds application in ion exchange agents, lubricants, plating agents and surface treating agents, greases, ink, toner, and colorant products.

Uses

Sympathetic inks, paint and varnish driers, catalyst, anodizing, mineral supplement in feed additives, foam stabilizer.

Definition

ChEBI: A cobalt salt in which the cobalt metal is in the +2 oxidation state and the counter-anion is acetate.

General Description

Red-violet crystalline solid. Vinegar-like odor.

Air & Water Reactions

Water soluble. Deliquescent

Reactivity Profile

Salts, 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.

Hazard

May not be used in food products (FDA).

Health Hazard

Inhalation 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 Hazard

Special Hazards of Combustion Products: Toxic cobalt oxide fumes may form in fire.

Safety Profile

Poison 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.