aluminum hydroxide

noun

, Chemistry.

a crystalline, water-insoluble powder, Al(OH) 3 or Al 2 O 3 ⋅3H 2 O, obtained chiefly from bauxite: used in the manufacture of glass, ceramics, and printing inks, in dyeing, and in medicine as an antacid and in the treatment of ulcers.

First recorded in 1870–75

From a dilute solution of alum, aluminum hydroxide is absorbed by the hair, the potassium sulphate remaining in solution.

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