酞 (tài) - Phthalein — a class of chemical compounds used

酞Tone 4

tài ｜ 11 strokes ｜ radical:

树檀

酞 · tài

Phthalein — a class of chemical compounds used as pH indicators and dyes, derived from phthalic anhydride and phenols.

Phthalein — a class of chemical compounds used

Usage highlights

phenolphthaleinphthalein compoundsphthalein dyesphthalein testphthalic anhydridephthalein indicator
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Usage & contexts

Examples

  • Phenolphthalein is a common acid-base indicator (酚酞).
  • This dye contains phthalein compounds (酞类化合物).
  • The laboratory uses phthalein tests (酞试验).
  • Phthalein dyes are used in textile industry (酞染料).

Collocations

  • phenolphthalein(酚酞)
  • phthalein compounds(酞类化合物)
  • phthalein dyes(酞染料)
  • phthalein test(酞试验)
  • phthalic anhydride(酞酐)
  • phthalein indicator(酞指示剂)

Cultural background

FAQ
  • 酞 is a modern chemical character created specifically for scientific terminology.
  • The character combines the 'wine/alcohol' radical 酉 with 太 (tài), indicating its chemical nature and phonetic component.
  • Primarily used in technical and scientific contexts, not in everyday language.

FAQ