Cobalt(II) acetate tetrahydrate Property

Melting point:

140 °C

Density 

1,71 g/cm³

refractive index 

1.542

storage temp. 

Store at +5°C to +30°C.

solubility 

348g/l

form 

Solid

color 

Red

Specific Gravity

1.71

Odor

Acetic acid odour

PH Range

6.8

PH

7.2 (50g/l, H2O, 20℃)

Water Solubility 

380 g/L (20 ºC)

Sensitive 

Hygroscopic

Merck 

14,2433

BRN 

3731397

Stability:

Stable. Avoid moisture, heat.

InChIKey

ZBYYWKJVSFHYJL-UHFFFAOYSA-L

CAS DataBase Reference

6147-53-1(CAS DataBase Reference)

EPA Substance Registry System

Cobalt acetate tetrahydrate (6147-53-1)

Safety

Hazard Codes 

Xn,N,T

Risk Statements 

22-38-40-43-53-50/53-42/43-36/37/38-20/21/22-68-60-49

Safety Statements 

36/37-61-45-29-24-22-37/39-36/37/39-26-60-53

RIDADR 

3077

WGK Germany 

2

RTECS 

AG3325000

TSCA 

No

HazardClass 

9

PackingGroup 

III

HS Code 

29152300

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(II) acetate tetrahydrate Chemical Properties,Usage,Production

Chemical Properties

Reddish violet deliequecent crystals.

Uses

Cobalt(II) acetate tetrahydrate is used as an industrial catalyst to harden paints and varnishes, an active catalyst for oxidation and esterification reactions. It is also used to prepare metal complexes having unusual coordination geometry.

Uses

Cobalt(II) acetate tetrahydrate may be used in the preparation of [Co₃(OH)₂(H₂O)₂(aptet)₄] (aptet = 4-aminophenyltetrazolate) and new tetradentate cobalt(II)-Schiff base complex.

Uses

1. Cobalt(II) acetate tetrahydrate is used to prepare complexes for examination of the properties of metals with unusual coordination geometries.
2. used as a catalyst for oxidation and esterification.
3. used as an industrial catalyst to harden paints and varnishes, an active catalyst for oxidation and esterification reactions.

Application

Cobalt(II) acetate tetrahydrate may be used in the synthesis of the following:

1. cobalt nanoparticles.
2. cobalt(II)–aminophenyltetrazolate coordination polymer.
3. tricobalt complexes with mixed μ-acetato and μ-pyrazolato ligands.

General Description

Cobalt(II) acetate tetrahydrate has an octahedral structure, the central cobalt orbit is coordinated by four water molecules and two acetate ligands. Cobalt(II) acetate tetrahydrate becomes anhydrous by 140^oC.

Safety Profile

Moderately toxic by ingestion. Questionable carcinogen. A skin and eye irritant. Human mutation data reported. See also COBUT COMPOUNDS. When heated to decomposition it emits acrid smoke and irritating fumes.

Purification Methods

Several recrystallisations from 50% aqueous acetic acid give the tetrahydrate. It is converted to the anhydrous salt by drying at 80o/1mm for 60hours. [Beilstein 2 IV 120.]