TREATMENT OF CHEMICAL AGENT CASUALTIES NOR NAVSURNLANT SHIPS

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                                         EPA CHEMICAL PROFILE

                                                                    Date: October 31, 1985
                                                                    Revision: November 30, 1987


            CHEMICAL IDENTITY -- ARSINE

            CAS Registry Number:    7784-42-1

            Synonyms:  Arsenic Hydride; Arsenic Trihydride; Arseniuretted Hydrogen;
            Arsenous Hydride; Hydrogen Arsenide

            Chemical Formula:   AsH3

            Molecular Weight:  77.93


            SECTION 1-- REGULATORY INFORMATION

                         (SARA) l986:~se~ for Listing Under Section 302:   LCiow inhalation


                       (mouse) 0.07 mg/liter/3 hours (*NIOSH/RTECS 1985)

                       TPQ: 100 (pounds)

--                     RQ: I (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: Gas

                Boiling Point: -80.40F, -62.50C (*Merck 1983)

                Specific Gravity (H2O=1):  1.689 at 1850F, 84.90C (liquid)
                (*Weast 1979) (Patty, 1981, p. 1520)

                Vapor Pressure (mmHg):    Greater than 1 atm (NIOSH/OSHA 1978, p. 48)

                Melting Point: -1790F, -1 170C (*Merck 1983)

                Vapor Density (AIR=1):   2.66 (*Sax 1986), 2.695 (Weast 1979)

                Evaporation Rate (Butyl acetate=l):  Not Found

                Solubility in Water: 20 ml/100 ml at 680F, 200C (*Clayton and Clayton
                1981-1982)


                Appearance and Odor:    Colorless gas; disagreeable garlic odor (*Merck
                1983).


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