Aluminium hydroxide oxide

Aluminium hydroxide oxide

Names
IUPAC name Aluminium hydroxide oxide
Systematic IUPAC name Hydroxidooxidoaluminium[1] (additive)
Other names Metaaluminic acid
Identifiers
CAS Registry Number	24623-77-6 Y
ChEBI	CHEBI:30188 Y
ChemSpider	30148 Y
EC number	246-368-8
Gmelin Reference	463741
InChI InChI=1S/Al.H2O.O/h;1H2;/q+1;;/p-1 Y Key: FAHBNUUHRFUEAI-UHFFFAOYSA-M Y
Jmol-3D images	Image
PubChem	32524
SMILES O[Al]=O
Properties
Molecular formula	HAlO2
Molar mass	59.99 g·mol−1
Density	3.01 g/cm3
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Aluminium hydroxide oxide or aluminium oxyhydroxide, AlO(OH) is found as one of two well defined crystalline phases, which are also known as the minerals boehmite and diaspore. The minerals are important constituents of the aluminium ore, bauxite.

List of related compounds and minerals

The aluminium oxides, oxide hydroxides, and hydroxides can be summarized as follows:

• aluminium oxides
  • corundum (Al₂O₃)

• aluminium oxide hydroxides
  • diaspore (α-AlO(OH))
  • boehmite or böhmite (γ-AlO(OH))
  • akdalaite (5Al₂O₃·H₂O) (once believed to be 4Al₂O₃·H₂O), also called tohdite

• aluminium hydroxides
  • gibbsite (often designated as γ-Al(OH)₃, but sometimes as α-Al(OH)₃,^[2] sometimes called hydrargillite or hydrargyllite)
  • bayerite (designated often as α-Al(OH)₃ but sometimes as β-Al(OH)₃)
  • doyleite
  • nordstrandite

References