euthiochroic

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CIDE DICTIONARY

euthiochroic, a. [Gr. e'y^ well + sulphur + color.].

Pertaining to, or denoting, an acid so called. [1913 Webster]

Euthiochroic acid (Chem.), a complex derivative of hydroquinone and sulphonic (thionic) acid. -- so called because it contains sulphur, and forms brilliantly colored (yellow) salts.

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