Gypsum (CaSO4•2H2O) is a naturally hydrated Calcium Sulphate and is only slightly soluble in water. Gypsum is used as the source of calcium in clear-water drilling and in other inhibitive mud systems.
Gypsum is hygroscopic; therefore it should be stored in a dry environment to avoid lumping and hardening. It is advisable to use a dust mask and eye protection while mixing all powdered products. A dust hazard is present while gypsum is being mixed.
Appearance: Light grey powder
Specific Gravity: 2.9 (rock)
Bulk Density: 1120-1424 kg/m3
Flash Point: Not available
Type: Inorganic Salt
Solubility: Slight (water)
Ph: 6.5
Microtox: Not applicable
Gypsum can be added to the mud system through the mud hopper. In lightly treated bentonite based systems the mud will flocculate with consequent thickening and an increase in fluid loss.
Gypsum is hygroscopic; therefore it should be stored in a dry environment to avoid lumping and hardening. It is advisable to use a dust mask and eye protection while mixing all powdered
products. A dust hazard is present while gypsum is being mixed.
WHMIS: Not Controlled
TDG: Not regulated
Packaging: 25kg bag
