矾 (fán) - Alum — a double sulfate salt of aluminum,

矾Tone 2

fán ｜ 8 strokes ｜ radical: 石

恩丰

矾 · fán

Alum — a double sulfate salt of aluminum, potassium, or ammonium, used in dyeing, water purification, and medicine.

Alum — a double sulfate salt of aluminum,

Usage highlights

AlumPotassium alumAmmonium alumAlum stoneAlum waterAlum solution

Synonyms

Usage & contexts

Examples

  • Alum is used in water purification (矾).
  • This mineral is potassium alum (明矾).
  • The dye requires alum as a mordant (矾作为媒染剂).

Collocations

  • Alum(矾)
  • Potassium alum(明矾)
  • Ammonium alum(铵矾)
  • Alum stone(矾石)
  • Alum water(矾水)
  • Alum solution(矾溶液)

Cultural background

FAQ
  • 矾 has been used in traditional Chinese medicine and dyeing processes for centuries.
  • In historical contexts, alum was important for water purification and textile production.

FAQ