copper chloride

noun

Definition of copper chloride

  1. :  a chloride of copper: a :  a white poisonous powder CuCl made by reducing cupric chloride and used chiefly as a catalyst and as an absorbent of carbon monoxide —called also copper(I) chloride, cuprous chloride b :  a yellowish brown deliquescent anhydrous powder CuCl2 made by heating copper in chlorine or a green crystalline dihydrate CuCl2.2H2O made by evaporating cupric oxide in hydrochloric acid, both being used chiefly as a mordant in dyeing and printing and in some metallurgical processes —called also copper(II) chloride, cupric chloride c :  any of various basic chlorides (as a brown powder CuCl2.3CuO) or mixtures formed on exposure of cupric chloride to air used as pigments and fungicides —called also copper oxychloride

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