Gypsum 63% appears as a white, crystalline, and odorless powder, widely used in construction, agriculture, and manufacturing industries. It is non-combustible, but can decompose at high temperatures. It is slightly soluble in water, forming a paste when mixed, which gradually hardens to provide significant mechanical strength.
This mineral primarily consists of calcium sulfate dihydrate (CaSO₄·2H₂O), which, when heated, transforms into plaster by losing its crystallized water.
Applications:
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Construction Industry:
- Used in the production of plaster, drywall, and coatings for interior finishing and thermal insulation.
- Serves as a setting regulator for cement, improving workability and durability.
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Agricultural Sector:
- Utilized as a soil amendment, enhancing soil structure and providing calcium and sulfur to crops.
- Helps reduce soil salinity and improves drainage.
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Food Industry:
- Added as a food additive (E516) to regulate acidity and improve the texture of products such as candies, desserts, and dairy items.
- Used as a filler agent in some nutritional supplements.
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Cosmetic and Pharmaceutical Products:
- Incorporated into cosmetic powder formulations for its absorbent and mattifying properties.
- Used as an inert excipient in pharmaceutical formulations.