Arsine

AsH₃

IUPAC: Arsane

CAS: 7784-42-1

Overview

Arsine is an extremely toxic gas used in the semiconductor industry for gallium arsenide production. It is the most toxic form of arsenic, causing massive hemolysis (red blood cell destruction). It has a mild garlic-like odor that is insufficient for warning.

Composition

Element Symbol Atoms Atomic Mass
Hydrogen H 3 1.0080
Arsenic As 1 74.9220

Elemental Composition

H
Hydrogen ×3
3.9%
As
Arsenic ×1
96.1%

Uses

  • • Gallium arsenide semiconductor production
  • • LED and solar cell manufacturing
  • • Chemical vapor deposition
  • • Marsh test for arsenic detection

Fun Facts

  • ✦ The Marsh test for arsenic detection works by converting arsenic compounds to arsine gas

Safety

  • ⚠ One of the most toxic industrial gases
  • ⚠ Causes massive hemolysis
  • ⚠ Delayed symptoms (hours to days)
  • ⚠ Odor insufficient for warning

Structure

SMILES

[AsH3]

Properties

Type
inorganic
State
gas
Molar Mass
77.95 g/mol
Density
3.1860 g/cm³
Melting Point
-111.2 °C
Boiling Point
-62.5 °C
Solubility
0.7 g/L at 20°C

Molecular Descriptors

Exact Mass
77.9451
TPSA
0.0 Ų
H-Bond Donors
0
H-Bond Acceptors
0
Rotatable Bonds
0
Heavy Atoms
1
Complexity
0.0

Also Known As

Arsenic trihydride

Related Compounds

Aluminum Chloride

AlCl₃

Aluminum Nitride

AlN

Ammonium Persulfate

(NH₄)₂S₂O₈

Barium Ferrite

BaFe₁₂O₁₉

Barium Titanate

BaTiO₃

Boron Nitride

BN

Boron Trichloride

BCl₃

Calcium Aluminate Cement

CaO·Al₂O₃

Calcium Carbide

CaC₂

Calcium Hydride

CaH₂

Frequently Asked Questions

What is Arsine?
Arsine (AsH₃) is a inorganic compound with the IUPAC name Arsane.
What is the molecular weight of Arsine?
Arsine has a molar mass of 77.945 g/mol.
What state is Arsine at room temperature?
Arsine is a gas at room temperature.
Is Arsine organic or inorganic?
Arsine is classified as an inorganic compound.
What elements make up Arsine?
Arsine (AsH₃) is composed of Hydrogen (H), Arsenic (As).