White Gypsum is synthetic gypsum precipitated by the neutralization of sulphuric acid. This consists of finely distributed calcium sulphate particulate matter.


White Gypsum is used as an additive in cement, for soil conditioning and in fertilizer application. In the construction industry, gypsum is primarily used as a binder in gypsum plaster boards, gypsum fibre boards, and plaster blocks.

Chemical name

Calcium sulfate dihydrate – CaSO4.2H2O
HS Code- 25202090



Characteristics Requirement Typical result
Colour Off white- Pale yellow Pale yellow
PH (20% Slurry in water) >5.0 5.9
Purity as CaSO4.2H2O 85 %min 96 %
Total Iron <2 % 0.2 %
Moisture 15% max 15 %