hồ phèn

Bà ngoại thường dùng hồ phèn để làm trong nước.

Definition

1. Noun:
   • Alum water; alum solution: A liquid mixture or solution containing alum, traditionally used in Vietnam for various purposes such as treating water, in traditional medicine, or in certain crafts.
   • The process of using alum: Refers to the act or technique of applying an alum solution.

Usage Examples

• Noun:
  • Bà ngoại thường dùng hồ phèn để làm trong nước. (My grandmother often uses alum water to clarify water.)
  • Trong nghề thuộc da, hồ phèn là một chất quan trọng. (In the tanning industry, alum solution is an important substance.)

Advanced Usage

• Technical/Industrial Context: In technical or industrial texts, "hồ phèn" can refer specifically to the process of aluming or treating with alum.
  • Quy trình hồ phèn giúp xử lý nước thải. (The aluming process helps treat wastewater.)

Variants and Related Words

• Phèn chua (n): Alum (the solid crystalline compound, potassium aluminum sulfate).
  • Mua ít phèn chua về để pha thành hồ phèn. (Buy some alum to mix into alum water.)

Synonyms

• Nước phèn: Alum water (a more direct, descriptive synonym).
• Dung dịch phèn: Alum solution (a more scientific synonym).

Related Phrases

• Xuống phèn: A phrase sometimes used in traditional contexts to describe a state or condition treated with or affected by alum, though it is not a direct phrasal verb of "hồ phèn".