- copper hydroxide
- noun
: a hydroxide or hydrated oxide of copper; specifically : the hydroxide Cu(OH)2 obtained as a blue precipitate by the action of alkali on cupric salt solutions or as blue crystals and used chiefly as a mordant and in preparing cuprammonium solution
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a blue, water-insoluble, poisonous powder, Cu(OH)2, used in the manufacture of rayon, as a source for copper salts, and as a mordant. Also called cupric hydroxide.
Useful english dictionary. 2012.