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                                                            Page 3 of 4

                                             LEWISITE

            SECTION V       (continued)

                Hazardous Polymerization:   May Occur:    Not Found
                                            May Not Occur:    Not Found


 t                    Conditions to Avoid: Not Found
            SECTION VI-- USE INFORMATION

                Vesicant war gas; chemical warfare agent (Doull 1980, p. 279).


            SECTION VII -- PRECAUTIONS FOR SAFE HANDLING AND USE
            (Steps to be Taken in Case Material is Released or Spilled)

 }              Avoid contact with eyes and skin; avoid breathing vapors (see Section III
                above).  (Non-Specific -- Arsenic Compound, Liquid, n.o.s.) Keep
                unnecessary people away; isolate hazard area and deny entry.   Stay upwind;
                keep out of low areas.  Ventilate closed spaces before entering them.
                Remove and isolate contaminated clothing at the site.  Do not touch spilled
                material; stop leak if you can do so without risk. Use water spray to

 t              reduce vapors.   Small spills: absorb with sand or other noncombustible
                absorbent material and place into containers for later disposal. Large
                spills: dike far ahead of spill for later disposal (DOT 1984, Guide 55).
     )          Can be decontaminated by supertropical bleach, DS2, or caustic soda (U.S.
 -~             Army 1975, pp. 3-11, 3-12).


            SECTION VIII-- PROTECTIVE EQUIPMENT FOR EMERGENCY SITUATIONS

                For emergency situations, wear a positive pressure, pressure-demand,
                full facepiece self-contained breathing ~PP~r~'tuS (SCBA) or pressure-
                demand supplied air respirator with escape SCBA and a fully-encapsulating,
                chemical resistant suit. See the introductory information section at the
                beginning of the profiles for additional information.


            SECTION IX-- EMERGENCY TREATMENT INFORMATION

                Signs and Symptoms of Exposure:   This material causes pulmonary edema,
                diarrhea, restlessness, weakness, subnormal temperature and low blood
                pressure.  It produces an immediate sea ring sensation in the eye, and
                permanent loss of sight if not decontaminated within 1 minute.  It produces
                an immediate and strong stinging sensation to the skin, followed by
                reddening within 30 minutes and blistering after about 13 hours.
                Inhalation of high concentrations may be fatal in as short a time as 10
                minutes (U.S. Army 1975, pp. 3-11, 3-12).

                Emergency and First Aid Procedures: (Non-Specific -- Arsenic Compound,
                Liquid, n.o.s.) Move victim to fresh air; call emergency medical care. If
                not breathing, give artificial respiration. If brcathing is difficult,
                give oxygen.   Remove and isolate contaminated clothing and shoes at the
                site. In case of contact with material, immediately flush skin or eyes
                with running water for at least 15 minutes.  Keep victim quiet and maintain

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