Gypsum

Calcium Sulphate Dihydrate Extra Pure is a high-purity, white crystalline compound commonly used in laboratory settings for controlled experiments involving hydration and crystallization. Also known as gypsum, it serves as a reliable source of calcium and sulfate ions in analytical chemistry and is often used in preparing culture media, setting-time studies, and thermogravimetric analysis. Its stable dihydrate form makes it ideal for demonstrating water crystallization and thermal decomposition when converted to hemihydrate or anhydrous forms. The extra pure grade guarantees minimal impurities, ensuring accuracy in sensitive applications. It should be stored in a cool, dry place to maintain its hydration state and analytical integrity.