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1.01093

Aluminum hydroxide

(fine powder pure, hydrargillite), Technipur®

Synonym(s):

Aluminic acid, Aluminium trihydroxide, Aluminium(III) hydroxide, Hydrargillite, Hydrated alumina, Orthoaluminic acid

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1 kg
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$49.30
25 kg
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$417.00
$208.50

About This Item

Linear Formula:
Al(OH)3
CAS Number:
21645-51-2
Molecular Weight:
78.00
UNSPSC Code:
12352305
NACRES:
NA.21
MDL number:
MFCD00003420

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vapor pressure

<0.1 hPa ( 20 °C)

Quality Segment

100

pH

8-9 (20 °C, 100 g/L in H2O, slurry)

bp

>2900 °C/1013 hPa

mp

300 °C (Elimination of water of crystallisation)

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

General description

Aluminum hydroxide is an inorganic compound widely used as an additive in electronic and polymeric applications due to its wide availability, corrosion resistance, light weightlessness, high melting point, good fire-retardant properties, and also its ability to release water of hydration at high temperatures (about 220 °C) to resist chemical bond breaking.

Application

Aluminum hydroxide can be used as an inorganic filler in polymeric industries to produce high-voltage outdoor insulation materials (silicone rubber composites) to improve flame retardancy and tracking resistance properties. In the fabrication of glass fiber reinforced polymer (GFRP)- hybrid composites, aluminum hydroxide is used as a modifier to enhance the mechanical and fire-retardant properties of the composites.

Aluminum hydroxide also finds application in ceramic and glass industries to prepare heat resistance materials due to its non-flammability and high melting point characteristics.

Legal Information

Technipur is a registered trademark of Merck KGaA, Darmstadt, Germany

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1.010951.01091409324
Aluminum hydroxide (fine powder pure, hydrargillite), Technipur&#174;

Sigma-Aldrich

1.01093

Aluminum hydroxide

Aluminum oxide (anhydrous (&#947;-aluminia)), Technipur&#174;

Sigma-Aldrich

1.01095

Aluminum oxide

Aluminium hydroxide powder, hydrargillite EMPLURA&#174;

Supelco

1.01091

Aluminium hydroxide

Aluminum iodide anhydrous, powder, 99.999% trace metals basis

Sigma-Aldrich

409324

Aluminum iodide

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

pH

8-9 (20 °C, 100 g/L in H2O, slurry)

pH

5 (100 °C, 50 g/L in H2O, suspension)

pH

8-9 (20 °C, 100 g/L in H2O, slurry)

pH

-

vapor pressure

<0.1 hPa ( 20 °C)

vapor pressure

-

vapor pressure

<0.1 hPa ( 20 °C)

vapor pressure

1 mmHg ( 178 °C)

mp

300 °C (Elimination of water of crystallisation)

mp

2040 °C (lit.)

mp

300 °C (Elimination of water of crystallisation)

mp

191 °C (lit.)

density

2.42 g/cm3 at 20 °C

density

-

density

2.42 g/cm3 at 20 °C

density

3.98 g/mL at 25 °C (lit.)

bp

>2900 °C/1013 hPa

bp

>2980 °C/1013 hPa

bp

-

bp

360 °C (lit.)

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Storage Class

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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Human health risk assessment for aluminium, aluminium oxide, and aluminium hydroxide
Krewski D, et al.
Journal of Toxicology and Environmental Health. Part B, Critical Reviews, 10(Suppl 1) (2007)
The Effect of Micro-Eggshells and Aluminium Hydroxide on Tracking Resistance of Silicone Rubber Composite
Khaigunha P, et al.
IOP Conference Series: Materials Science and Engineering, 859 (012009) (2020)
Investigation on Effect of Aluminium Hydroxide on Mechanical and Fire Retardant Properties of GFRP- Hybrid Composites
Hiremath P, et al.
Materials Today: Proceedings, 4(10), 10952-10956 (2017)
View All Related Papers

Global Trade Item Number

SKUGTIN
101093902504027269986216
101093902604027269200343
101093100004022536015774

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