CAS 1303-00-0 Gallium arsenide - Materials / Alfa Chemistry

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Gallium arsenide

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Catalog Number

ACM1303000

Product Name

Gallium arsenide

Structure

CAS

1303-00-0

Category

Electronic Materials

Description

Gallium arsenide appears as dark gray crystals with a metallic greenish-blue sheen or gray powder. Melting point 85.6°F (29.78°C).;Dark gray crystals with a metallic greenish-blue sheen or gray powder.

IUPAC Name

gallanylidynearsane

Molecular Weight

144.64g/mol

Molecular Formula

GaAs;GaAs;AsGa

Canonical SMILES

[Ga]#[As]

InChI

InChI=1S/As.Ga

InChI Key

JBRZTFJDHDCESZ-UHFFFAOYSA-N

Melting Point

2260 °F (NTP, 1992);1238 °C;2260°F

Density

5.31 at 77 °F (NTP, 1992);5.3176 @ 25 °C;5.31

Solubility

less than 1 mg/mL at 68° F (NTP, 1992);<1 mg/mg in DMSO, 95% ethanol, methanol, and acetone; soluble in hydrochloric acid;In water, <1 mg/ml @ 20 °C

Color/Form

Cubic crystals, dark gray with metallic sheen;Gray cubic crystals

Complexity

Covalently-Bonded Unit Count

EC Number

215-114-8

Exact Mass

143.84717g/mol

Formal Charge

Heavy Atom Count

MeSH Entry Terms

GaAs;gallium arsenate;gallium arsenide

Monoisotopic Mass

143.84717g/mol

Odor

Garlic odor when moistened

Other Experimental

Hardness 4.5; thermal expansion coefficient: 5.9x10-6; thermal conductivity 0.52 watt units; specific heat 0.086 cal/g/deg c; intrinsic electron concn 10+7; energy gap @ room temp 1.38 electron volts; electron mobility 8800 square cm/volt sec; effective mass for electrons 0.06 m(-0);Lattice constant 5.6-54 Angstroms; dielectric constant 11.1; intrinsic resistivity @ 300 deg K= 3.7X10+8 ohm-cm; electron lattice mobility @ 300 deg K= 10,000 square cm/volt-sec; intrinsic charge density @ 300 deg K= 1.4X10+6/cc; electron diffusion constant @ 300 deg K= 310 square cm/sec; hole diffusion constant= 11.5 square cm/sec;Electroluminescent in infrared light;Forms a hydrate which is orthorhombic and it can form acidic salts

Rotatable Bond Count

UNII

27FC46GA44

UN Number

1557;3077

MSDS

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COA

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Spec Sheet

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