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239186

Sigma-Aldrich

Aluminum hydroxide

reagent grade

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

grade

reagent grade

Quality Level

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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1 of 4

This Item
2370783100931.01093
Aluminum hydroxide reagent grade

239186

Aluminum hydroxide

Essential Grade
Aluminum chloride hexahydrate ReagentPlus®, 99%

237078

Aluminum chloride hexahydrate

-
Magnesium hydroxide reagent grade, 95%

310093

Magnesium hydroxide

Essential Grade
Aluminum hydroxide (fine powder pure, hydrargillite), Technipur®

1.01093

Aluminum hydroxide

-
grade

reagent grade

grade

-

grade

reagent grade

grade

-

form

powder

form

crystalline solid, crystals or chunks

form

powder

form

-

solubility

water: insoluble

solubility

-

solubility

-

solubility

-

density

2.42 g/cm3 at 20 °C

density

-

density

-

density

2.42 g/cm3 at 20 °C

composition

Al2O3, 50-57%

composition

-

composition

-

composition

-

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

13 - Non Combustible Solids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable


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Arsenate adsorption on amorphous aluminum hydroxide.
Anderson MA, et al.
Journal of Colloid and Interface Science, 54(3), 391-399 (1976)

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