Calcium sulphate

Calcium Sulphate (also known as gypsum and plaster of Paris) is a chemical compound with the formula CaSO4. It is a white solid that is commonly used in construction and medical applications.

Chemical Properties

Calcium sulphate is a white, crystalline solid at room temperature. It is slightly soluble in water, but insoluble in alcohol. When heated, it loses water and converts to the anhydrous form, which is a white powder.

Physical Properties

Calcium sulphate is a heavy, relatively hard material. It has a Mohs hardness of 2 and a specific gravity of 2.32. It is odorless and tasteless.

Uses

Calcium sulphate has a wide range of uses. It is used in the construction industry as a building material, in the form of plaster and drywall. It is also used in the medical field as a surgical plaster. In agriculture, it is used as a soil conditioner and fertilizer.

Health Effects

Exposure to calcium sulphate can cause irritation to the eyes, skin, and respiratory system. Ingestion can cause gastrointestinal upset. Long-term exposure can lead to more serious health effects.

See Also

• Calcium
• Sulphate
• Gypsum
• Plaster of Paris

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