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Hasil cari dari kata atau frase: Phenolphthalein(0.01032 detik)
Found 2 items, similar to Phenolphthalein.
English → English (WordNet)
n : a laxative used in many preparations under various trade
names; also used as an acid-base indicator in titrations
involving weak acids and strong bases because it is
brilliant red at high alkalinity and colorless below pH 8
English → English (gcide)
Phenolphthalein \Phe`nol*phthal"e*in\, n., or Phenol phthalein
A white or yellowish white crystalline substance, C20H14O4,
formed by condensation of the anhydride of phthalic acid and
phenol. Its solution in alkalies is brilliant red, but is
decolorized by acids. This reaction, being very delicate, is
used as an indicator. It is sometimes used as a laxative in
[Webster 1913 Suppl. +PJC]