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Basic Information
CAS No.: 684-82-2
Name: butan-2-ylarsonous dichloride
Molecular Structure:
Molecular Structure of 684-82-2 (butan-2-ylarsonous dichloride)
Formula: C4H9AsCl2
Molecular Weight: 202.95
Boiling Point: 194.1°C at 760 mmHg
Flash Point: 70.5°C
Safety: Poison by inhalation. When heated to decomposition it emits toxic fumes of As and Cl−.
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Chemistry

IUPAC Name: Butan-2-yl(dichloro)arsane
Synonyms of sec-Butyldichloroarsine (CAS NO.684-82-2): 1-Methylpropyl)arsonous dichloride ; Dichloro(1-methylpropyl)arsine ; sec-Butyldichlorarsine ; Arsine, sec-butyldichloro- ; Arsonous dichloride, (1-methylpropyl)- (9CI)
CAS NO: 684-82-2
Molecular Formula: C4H9AsCl2
Molecular Weight : 202.9419
Molecular Structure:
H bond acceptors: 0
H bond donors: 0
Freely Rotating Bonds: 2
Polar Surface Area: 0 Å2
Flash Point: 70.5 °C
Enthalpy of Vaporization: 41.27 kJ/mol
Boiling Point: 194.1 °C at 760 mmHg
Vapour Pressure: 0.627 mmHg at 25°C

Toxicity Data With Reference

1.    

ihl-mus LC50:12 g/m3/10M

     NTIS**    National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) PB158-508 .

Safety Profile

Poison by inhalation. When sec-Butyldichloroarsine (CAS NO.684-82-2) is heated to decomposition ,it emits toxic fumes of As and Cl−.

Standards and Recommendations

OSHA PEL: TWA 0.5 mg(As)/m3