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 - TA3UN

          CAS Registry Number:   77-81.6

          Synonyms: (NIOSH/RTECS 1983 Synonyms, Volume 3, p. 127) Phosphoramido-
          cyanidic Acid, Dimethyl-, Ethyl Ester; Dimethylamidoethoxyphosphoryl Cyanide;
          Dimethylphosphoramidocyanidic Acid, Ethyl Ester; Ethyl Dimethylamidocyano-
          phosphate; Ethyl N,N-Dimethylphosphoramidocyanidate; Ethyl N,N-Dimethylamino
          Cyanophosphate; GA; LE-1OO; MCE; T-2104; TL 1578

          Chemical Formula:  C5H11N2O2P

          Molecular Weight:  162.15


          SECTION 1 - REGULATORY INFORMATION

              CERCLA (SARA) 1986:

   ~             Toxicity Value Used for Listing Under Section 302:

                      LD50 skin (mouse) 1 mg/kg (*NIOSH/RTECS 1985)

                 TPQ: 10 (pounds)

                 RQ: 1 (pounds) (statutory, for notification under SARA Section 304(a)(2))

                 Section 313 Listed (Yes or No): No


          SECTION II-- PHYSICAL/CHEMICAL CHARACTERISTICS

              Physical State: Liquid

              Boiling Point: 4640F, 2400C (Merck 1983, p. 1297)

              Specific Gravity (H2On1): 1.073 (U.S. Army 1975, p. 3-2)

              Vapor Pressure (mmHg):  0.07 at 250C (U.S. Army 1975, p. 3-2)

              Melting Point: *580F, *500C (Merck 1983, p. 1297)

              Vapor Density (AIR=1):  5.63 (U.S. Army 1975, p. 3-2)

              Evaporation Rate (Butyl acetatenl): Not Found

              Solubility In Water: Miscible (Merck 1976, p. 1297).