Aluminum hydroxide gel

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A white, amorphous solid or gel. Aluminum hydroxide gel is produced by either soaking Alumina trihydrate in dilute acid or by treating Aluminum sulfate with an Alkali. Aluminum hydroxide gel can be used for similar applications to alumina trihydrate. It is also used as a lubricant, an antacid, and as a filter medium. Additionally, aluminum hydroxide gel is used as a mordant for dyeing textiles and is used in the manufacture of glass and ceramic glazes.

Synonyms and Related Terms

hydrous aluminum oxide; alumina gel


  • Noncombustible.
  • Fisher Scientific: SDS

Physical and Chemical Properties

  • Soluble in acid and alkali. Insoluble in water and ethanol.
  • Density = 2.4 g/ml

Resources and Citations

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 355