hydroxide is a kind of bulk pharmaceutical chemical. There are some basic informations about this crude
drug: (1)CAS No.:; (2)PubChem: 10176082; (3)ChemSpider: 8351587; (4)UNII: 5QB0T2IUN0; (5)RTECS number: BD0940000; (6)Molecular formula: Al(OH)₃; (7)Molar mass: 78.00 g/mol; (8)Appearance: White amorphous powder; (9)Solubility in water: 0.0001 g/100 mL (20 °C); (10)Solubility: soluble in acids, alkalis, HCl, H₂SO₄.

, Al(OH)₃, ATH, sometimes erroneously called Hydrate of alumina, is found in nature as the mineral gibbsite and its three, much more rare forms, polymorphs: bayerite, doyleite and nordstrandite.

Virtually all the aluminium hydroxide used commercially is manufactured by the Bayer process which involves dissolving bauxite in sodium hydroxide as the first step. It is marketed as Alu-Tabs.

Annual production is some 100 million tonnes, over 90% of which is converted to aluminium oxide (alumina) which is used in the manufacture of aluminium metal. The major other uses of aluminium hydroxide is as a feedstock for the manufacture of other aluminium compounds: specialty calcined aluminas, aluminium sulfate, polyaluminium chloride, aluminium chloride, zeolites, sodium aluminate, activated alumina, aluminium nitrate.

Aluminium hydroxide also finds use as a fire retardant filler for polymer applications in a similar way to magnesium hydroxide and hydromagnesite. It decomposes at about 180 °C, absorbing a considerable amount of heat in the process and giving off water vapour.