lưu toan

Một học sinh đang cẩn thận rót lưu toan vào ống nghiệm trong phòng thí nghiệm.

Definition

1. Noun:
   • Sulfuric acid: A highly corrosive, dense, oily liquid, H₂SO₄, used extensively in industry. This is the primary and specific meaning of the term "lưu toan" in Vietnamese.

Usage Examples

• Noun: (Sulfuric acid is an important industrial chemical.) (Extreme caution is required when handling sulfuric acid because it is highly corrosive.)

Advanced Usage

• The term "lưu toan" is a Sino-Vietnamese compound word, where "lưu" refers to sulfur and "toan" means acid. It is a formal, technical term used almost exclusively in scientific and industrial contexts.
• It is often seen in compound terms specifying concentration or type, such as "" (concentrated sulfuric acid).

Variants and Related Words

• A-xít sun-phu-ríc: A phonetic transcription from French (), sometimes used interchangeably with "lưu toan" in older or specific technical texts.
• Dung dịch lưu toan: Sulfuric acid solution.
• Lưu huỳnh: Sulfur (the element).

Synonyms

• A-xít sulfuric: The modern, more common Vietnamese term derived from English, increasingly used alongside "lưu toan".

Important Notes

• "Lưu toan" is not used in everyday conversation. It is a specialized chemical term.
• There are no common idioms or phrasal verbs associated with this specific technical term.