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Cobalt Sulphate

Production Information
PROPERTIES   &  USAGE
Properties   Usage
Chemical formula CoSO4 preparation of pigments
Boiling point 420 °C (788 °F; 693 K) (heptahydrate) in porcelains and glass. 
Density 3.71 g/cm3 (anhydrous) additive
  3.075 g/cm3 (monohydrate)  
  2.019 g/cm3 (hexahydrate)  
  1.948 g/cm3 (heptahydrate)  
Melting point 735 °C (1,355 °F; 1,008 K) (anhydrous)  
  96.8 °C (heptahydrate)  
Molar mass 154.996 g/mol (anhydrous)  
  173.01 g/mol (monohydrate)  
  263.08 g/mol (hexahydrate)  
  281.103 g/mol (heptahydrate)  
 
 
SPECIFICATION
Specification      
Co:  : 21%min. 33% min
Ni:  : 0.002% max.  
Fe:  : 0.002% max.  
Ca:  : 0.002% max.   
Mg:  : 0.002% max.   
Cu:  : 0.002% max.   
Mn:  : 0.002% max.   
Zn:  : 0.002% max.   
Pb:  : 0.002% max.  0.005 max
Na:  : 0.002% max.  
As :   0.0005 max
Cd :   0.002 max
Hg :   0.005 max