GREMONT CHEMICAL COMPANY LIMITED
Cobalt Chloride
Hexahyrdate
 
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PROPERTIES   &  USAGE
Properties   Usage
Chemical formula CoCl2 Invisible ink
Molar mass 129.839 g/mol (anhydrous)  
  165.87 g/mol (dihydrate)  
  237.93 g/mol (hexahydrate)  
Density  3.356 g/cm3 (anhydrous)  
  2.477 g/cm3 (dihydrate)  
  1.924 g/cm3 (hexahydrate)  
Melting point  735 °C (1,355 °F; 1,008 K) (anhydrous)  
  140 °C (monohydrate)
  100 °C (dihydrate)
  86 °C (hexahydrate)
Boiling point 1,049 °C (1,920 °F; 1,322 K)
 
 
SPECIFICATION
Specification : hexayrdate
Purity (% min.)  : 98
 Fe (% max.)  : 0.003
 Cu (% max.)  : 0.003
 Pb (% max.)  : 0.003
 Zn (% max.)  : 0.003
 Ni (% max.)  : 0.2
 Na (% max.)  : 0.05
 K (% max.)  : 0.05
 Ca (% max.)  : 0.01
 SO4 (% max.)  : 0.01
 pH (50g/l)(min.)  : 4
 
 
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