COBALT(II) SULFATE HYDRATE Chemical Properties

Density 

2.03 g/mL at 25 °C(lit.)

form 

Crystalline Powder

color 

Red-orange

Water Solubility 

Soluble in water. Slightly soluble in methanol and ethanol

Exposure limits

ACGIH: TWA 0.02 mg/m3

CAS DataBase Reference

60459-08-7(CAS DataBase Reference)

Safety Information

Hazard Codes 

T,N

Risk Statements 

49-22-42/43-50/53-68-60

Safety Statements 

53-22-45-60-61

RIDADR 

UN 3077 9/PG 3

WGK Germany 

2

RTECS 

GG3200000

TSCA 

Yes

HazardClass 

9

PackingGroup 

III

HS Code 

28332930

MSDS

• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

COBALT(II) SULFATE HYDRATE Usage And Synthesis

Chemical Properties

Reddish crystalline powder

Uses

Ceramics, pigments, glazes, plating baths, catalyst, storage batteries, paint/ink drier

Uses

Cobalt(II) sulfate hydrate (CoSO4.H₂O) can be used in the synthesis of coordination polymers. It can also be used as a starting material in the synthesis of cobalt sulfides hexagonal nanocrystallites.

Purification Methods

Crystallise it three times from conductivity water (1.3mL/g) between 100o and 0o depending on which hydrate is required. The heptahydrate crystallises below 44o and is efflorescent with m 97o . Between 44o and 70o the monoclinic hexahydrate CoSO4.6H2O m 41.5o is formed, and above 70o the monohydrate CoSO4.H2O m 71o is obtained. The pale reddish or lavender-coloured anhydrous salt is obtained by heating the hydrate above 250o, boiling with conc H2SO4 or heating with (NH4)2SO4).

COBALT(II) SULFATE HYDRATE(60459-08-7)Related Product Information

• Tricobalt tetraoxide
• COBALT(III) FLUORIDE
• BERYLLIUM HYDROXIDE
• Cupric hydroxide
• Barium hydroxide
• Cobaltous nitrate hexahydrate
• NICKEL(II) HYDROXIDE
• cobalt trihydroxide
• Ammonium hydroxide
• Cobalt(II) hydroxide
• Cobalt sulfate heptahydrate
• Cobalt oxide
• Cobalt chloride
• COBALT (II) SULFAMATE
• Cobalt carbonate
• Cobalt acetate
• Cobalt sulfate
• COBALT(II) SULFATE HYDRATE