Copper sulfate

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Copper sulfate
aka Cupric sulfate
Chemical formula CuSO4
OTP appearance blue crystal 
Molar Mass(g/mol) 159.609 
Density(g/cc) 3.6 
Solubility in water(g/L) 320 
Solubility in ethanol(g/L) insoluble
NFPA 704
NFPA704.png
0
2
1
 

 

Thermal decomposition of
Copper sulfate pentahydrate
63
5-hydrate
63°C
3-hydrate
109
3-hydrate
109°C
1-hydrate
200
1-hydrate
200°C
anhydrous
650
CuSO4
650°C
CuO + SO3

Uses

Primary

Secondary

  • Pesticide/Fungicide component

Natural occurrence

  • Does (rarely) occur naturally as the mineral chalcanthite

Hazards

  • Eye and skin contact with finely divided powder is irritating
  • Vomiting caused by 11mg/kg oral dose
  • Larger oral doses (1-12g) can be fatal

Production

Synthesis

  • Combine any copper (II) salt with sulfuric acid
    CuCl2 + H2SO4 CuSO4 + 2 HCl // copper chloride to hydrochloric acid
    Cu(CH3COO)2 + H2SO4 CuSO4 + 2 CH3COOH // copper acetate to acetic acid.

Purification

Testing

Storage

Disposal

See Also

References