• Webster's Revised Unabridged Dictionary
    • n Quinhydrone (Chem) A green crystalline substance formed by the union of quinone with hydroquinone, or as an intermediate product in the oxidation of hydroquinone or the reduction of quinone.
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Century Dictionary and Cyclopedia
    • n quinhydrone A dark-green crystalline compound, C6H.4O2.C6H4(OH)2, made by mixing solutions of quinone and hydroquinone, by the partial reduction of quinone, or by partly oxidizing hydroquinone by means of ferric chlorid. It breaks down into quinone and hydroquinone when boiled with water, and melts at 171° C.
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Webster's Revised Unabridged Dictionary
Quin,one + hydro,quinone