Phthalein (noun) Definition, Meaning & Examples

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noun Chemistry.
  1. any of a group of compounds formed by treating phthalic anhydride with phenols, from which certain important dyes are derived.
noun
  1. any of a class of organic compounds obtained by the reaction of phthalic anhydride with a phenol and used in dyes
    Phthalein (noun) Definition, Meaning & Examples

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