Ammonium cobalt(II) sulfate hexahydrate Chemical Properties

Melting point:

120 °C (dec.)(lit.)

Density 

1.902 g/mL at 25 °C(lit.)

solubility 

soluble in H2O; insoluble in ethanol

form 

Crystalline

color 

Pink to red

Water Solubility 

Soluble in water, Insoluble in alcohol

Sensitive 

Hygroscopic

Exposure limits

ACGIH: TWA 0.02 mg/m3

Safety Information

Hazard Codes 

Xn

Risk Statements 

20/22-36/37/38-43

Safety Statements 

26-36

RIDADR 

3288

WGK Germany 

3

TSCA 

Yes

HazardClass 

9

HS Code 

28332990

MSDS

• Language:English Provider:Cobalt(II) diammonium sulfate hexahydrate
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

Ammonium cobalt(II) sulfate hexahydrate Usage And Synthesis

Description

From aqueous solutions the orange-pink heptahydrate CoSO4.7H2O crystallizes ; this is isomorphous with FeSO4.7H2O. Crystallization at 30° or by heating the heptahydrate at 41.5° yields the orange-red hexahydrate ; the monohydrate is formed above 70° and the anhydrous sulphate above 250°. This cubic anhydrous salt decomposes at 735° ; it is less deliquescent than the chloride or nitrate and is the salt used for many commercial purposes. Its solubility in water (about 36 g CoSO4 in 100 g H2O at 20°) increases with temperature ; it is insoluble in alcohol. The hydrates are magnetically dilute, having magnetic moments around 4.75 B.M. at room temperature.

Chemical Properties

Reddish Crystal

Uses

Ammonium cobalt(II) sulfate hexahydrate is uses as spectroscopic standard, cobalt plating, catalysis and ceramics. It is also used in pharmaceutical intermediates.

Ammonium cobalt(II) sulfate hexahydrate(13586-38-4)Related Product Information

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• Ammonium citrate tribasic
• Ammonium acetate
• Cobalt sulfate
• Ammonium chloride
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• Sodium sulfate
• Ammonium hydroxide
• Aluminum sulfate
• Ammonium sulfate
• Cobalt sulfate heptahydrate
• LACTOSE, MONOHYDRATE
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• Dimethyl sulfate
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• sulfate