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EPA CHEMICAL PROFILE
Date: October 31, 1985
Revision: November 30, 1987
CHEMICAL IDENTITY -- LEWISITE
CAS Registry Number: 541-25-3
Synonyms: Arsine, Dichloro(2-Chlorovinyl)-; Arsine, (2-Chiorovinyl)
Dichioro-; Arsonous Dichioride, (2-Chioroethenyl)- (90); Chiorovinylarsine
Dichioride; beta-Chlorovinylbichloroarsine; 2-Chlorovinyldichloroarsine;
Dichloro(2-Chlorovinyl)Arsine
Chemical Formula: C2H2AsCl3
Molecular Weight: 207.31
SECTION 1 -- REGULATORY INFORMATION
CERCLA (SARA) 1986:
Toxicity Value Used for Listing Under Section 302: LD50 dermal
) (rabbit) 6 mg/kg (*NIOSHIRTECS 1985)
TPQ: 10 (pounds)
RQ: 1 (pounds)
(statutory, for notification under SARA Section 304(a)(2))
Section 313 Listed (Yes or No): In Arsenic Compounds category
SECTION 11--PHYSICAL/CHEMICAL CHARACTERISTICS
Physical State: Liquid
1~ Boiling Point: 3740F, 1900C (decomposes) (Merck 1983, p. 445)
Specific Gravity (H2O=1): 1.888 at 200C/40C (Merck 1983, p. 445)
Vapor Pressure (mmHg): 0.395 at 200C (Merck 1983, p. 445)
Melting Point: 320F, 0.10C (Merck 1983, p. 445)
Vapor Density (AIR=1): 7.1 (U.S. Army 1975, pp. 3-11, 3-12)
.1 Evaporation Rate (Butyl acetate=1): Not Found
Solubility In Water: Insoluble (Merck 1983, p. 445)
Appearance and Odor: Liquid with odor of geraniums (Merck 1983, p. 445).
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