calcium sulphate

Thân thiện

A student adds calcium sulphate to a beaker of water in the lab.

Definition

1. Noun:
   • A white salt (CaSO₄): A chemical compound consisting of calcium, sulfur, and oxygen, often found in nature as gypsum or anhydrite. It is used in construction materials, as a desiccant, and in food preparation.

Usage Examples

• Noun:
  • Plaster of Paris is made from calcium sulphate.
  • The soil's high content of calcium sulphate affected its fertility.
  • Calcium sulphate is used as a coagulant in tofu production.

Advanced Usage

• In industrial contexts: Often referred to by its mineral forms.
  • The wallboard is manufactured using gypsum, a hydrated form of calcium sulphate.
• In scientific notation: Represented by the chemical formula CaSO₄.
  • The reaction yields a precipitate of calcium sulphate.

Variants and Related Words

• Calcium sulfate: The American English spelling variant.
• Gypsum (n): The dihydrate form of calcium sulphate (CaSO₄·2H₂O), a soft mineral used for plaster.
• Anhydrite (n): The anhydrous (water-free) mineral form of calcium sulphate (CaSO₄).
• Plaster of Paris (n): A hemihydrate form of calcium sulphate (CaSO₄·½H₂O) produced by heating gypsum, used for casts and molds.

Synonyms

• Gypsum (when referring to the common dihydrate mineral form).
• Anhydrite (when referring to the anhydrous mineral form).

Related Phrases/Compounds

• Calcium sulphate dihydrate: The full chemical name for gypsum.
• Calcium sulphate hemihydrate: The full chemical name for Plaster of Paris.

Học thuật

Noun

1. a white salt (CaSO4)

Từ đồng nghĩa

• calcium sulfate