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239186

Sigma-Aldrich

Aluminum hydroxide

reagent grade

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About This Item

Linear Formula:
Al(OH)3
CAS Number:
Molecular Weight:
78.00
EC Number:
MDL number:
UNSPSC Code:
12352305
PubChem Substance ID:
NACRES:
NA.55

grade

reagent grade

form

powder

composition

Al2O3, 50-57%

concentration

50.0-57.5% (Al (as Al2O3), EDTA titration)

solubility

water: insoluble

density

2.42 g/cm3 at 20 °C

SMILES string

O[Al](O)O

InChI

1S/Al.3H2O/h;3*1H2/q+3;;;/p-3

InChI key

WNROFYMDJYEPJX-UHFFFAOYSA-K

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General description

Aluminum hydroxide (Al (OH)3) is an amphoteric compound, soluble in both base and acids. It is used as a precursor for alumina catalysts and flame-retardant materials. Aluminum hydroxide is primarily used as a feedstock to produce other aluminum compounds, including sodium aluminate, activated alumina, aluminum nitrate, zeolites, polyaluminum chloride, aluminum chloride, and specialty calcined aluminas.

Application

Aluminum hydroxide may be used:
  • In the preparation of Li2O–Al2O3–SiO2 (LAS) glass-ceramic systems.
  • As a aluminum precursor in the preparation of alumina.

Other Notes

may contain aluminum carbonate species

Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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