Languages
Food & Beverage
Home    |    Food & Beverage

Calcium Sulphate

Gypsum,Dihydrate
Production Information
PROPERTIES
Properties  
Chemical formula CaSO4
Density 2.96 g/cm3 (anhydrous)
  2.32 g/cm3 (dihydrate)
Melting point 1,460 °C (2,660 °F; 1,730 K) (anhydrous)
Molar mass 136.14 g/mol (anhydrous)
  145.15 g/mol (hemihydrate)
  172.172 g/mol (dihydrate)
 
 
SPECIFICATION
Specification : Agricultural Grade
Description: : White Powder 
Assay:                            : 95 Min 
Whiteness :                     : 90% min 
Specific weight(g/m3):     : 2.36
Crystal water(%):            : 19-21
Free Moisture at 45 °C:   : ≤1.0% 
Sulfur trioxide SO3 (%):    : 44-46 
Calcium oxide CaO (%):  : 31-33 
Magnesium oxide MgO (%): : 0.2-0.8 
Carbon dioxide CO2 (%):  : 0.5-1.0 
Acid Insoluble Matter (%):  : 0.2-1.0 
PH—10% Slurry 10%:      : 6.8-7.2 
Fluorine (F):                     : 0.01% MAX 
Selenium(Se):                : 0.005% MAX 
Arsenic(As):                   : 0.001 MAX 
Plumbum(Pb):                 : 0.001 MAX