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Meaning of aluminum chloride

alu'minum chlo'ride

Pronunciation: [key]
— Chem. Chem.
  1. a yellow-white, crystalline, water-soluble solid that in its white hydrated form, AlCl&multiplydot;6HO, is used chiefly as a wood preservative and in its yellow-white anhydrous form, AlCl, chiefly as a catalyst.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.