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氢氟酸 (qīng fú suān) — hydrofluoric acid (HF)

Definition

noun
hydrofluoric acid (HF)

Examples

  • 氢氟酸。
    Chǔ lǐ qīng fú suān shí bì xū dài shàng fáng hù shǒu tào.
    When handling hydrofluoric acid, you must wear protective gloves.
  • 氢氟酸。
    qīng fú suān Jù yǒu hěn qiáng de fǔ shí xìng.
    Hydrofluoric acid is highly corrosive.
  • 氢氟酸。
    Shí yàn shì lǐ chǔ cún zhe shǎo liàng qīng fú suān.
    A small amount of hydrofluoric acid is stored in the lab.

Origin

Compound word
构词法gòucífǎ
偏正piānzhèngModifier + head

The first part narrows down the second: it says what kind of thing the head is.

氢氟hydrogen fluoride
氢qīnghydrogen氟fúfluorine
联合Coordinate
酸suānacid

氢 (hydrogen), 氟 (fluorine), and 酸 (acid) combine to name hydrofluoric acid.

Characters in this word

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

This origin belongs to the traditional form 氫; 氢 is its simplified writing.

Meaning part形符xíngfú
气气qìair; gas
Sound part声符shēngfú
輕
輕qīng氫qīng
Same sound today

The traditional form 氫 combines 气 (air; gas) with 輕, which gives the pronunciation qīng; the simplified 氢 is a later shorthand.

Open 氢 →

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

Meaning part形符xíngfú
气气qìgas
Sound part声符shēngfú
弗
弗fú氟
Same sound today

氟 combines 气 (gas) with 弗, a part that points to its sound.

Open 氟 →

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

Meaning part形符xíngfú
酉酉yǒu
Sound part声符shēngfú
夋
夋qūn酸suān
The sound has drifted apartThe sound part was a clue two thousand years ago — it often still helps, but not always.

酸 is built from 酉 and 夋, and 夋 gives the sound.

Open 酸 →
Appears in
Materials & SubstancesPhysics & Chemistry

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