ALUMINUM ARSENIDE Chemical Properties

Melting point:

1740°C

Density 

3.81

refractive index 

2.94

form 

Powder

color 

Orange

Water Solubility 

Insoluble in water.

Crystal Structure

Cubic, Sphalerite Structure - Space Group F(-4)3m

Exposure limits

ACGIH: TWA 0.01 mg/m3
NIOSH: IDLH 5 mg/m3; Ceiling 0.002 mg/m3

CAS DataBase Reference

22831-42-1(CAS DataBase Reference)

EPA Substance Registry System

Aluminum arsenide (AlAs) (22831-42-1)

Safety Information

Hazard Codes 

T,N

Risk Statements 

23/25-50/53

Safety Statements 

20/21-28-45-60-61

RIDADR 

UN1557

WGK Germany 

3

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

II

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

ALUMINUM ARSENIDE Usage And Synthesis

Chemical Properties

-20 mesh powder(s) with 99.5% purity; semiconductor; band gap, 2.13eV (22°C); electronic dielectric constant, 10.3; lattice constant a=0.5662 nm; enthalpy of fusion 24.5 kJ/mol; uses: in rectifiers, transistors, and thermistors [CIC73] [ALF93] [HAW93]

Uses

Aluminum arsenide is used for the manufacture of optoelectronic devices, such as light emitting diodes. It is used in the production of some solar cells. It is also used in rectifiers, transistors, thermistors.

Definition

A semiconductor used in rectifiers, transistors, thermistors.

Hazard

Poisonous by ingestion.

ALUMINUM ARSENIDE(22831-42-1)Related Product Information

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