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                                                         Page 3 of 4

                                             MUSTARD GAS

            SECTION IV     (continued)

                Unusual Fire and Explosion Hazards:   Can be ignited by large explosive
                charge. When heated to decomposition, emits highly toxic fumes of oxides
                of sulfur and chlorine containing compounds. Reacts with water or steam to
                produce toxic and corrosive fumes (*Sax 1975). Containers may rupture
                violently in a rire (Student 1981, p. 358).

                NFPA Flammability Rating:   Not Found


            SECTION V -- REACTIVITY DATA

                Stability: Unstable:  Yes; hydrolyzed in aqueous solution (*IARC
                                        1972-1985)
                           Stable:

                    Conditions to Avoid: High heat; contact with acid or acid fumes (*Sax
                    1984, p. 482).

                Incompatibility (Materials to Avoid): Incompatible with bleaching powder
                (Sax 1984, p. 482). Reacts violently with oxidizing materials. Reacts
                with water or steam to produce toxic and corrosive fumes (*Sax 1975).

                Hazardous Decomposition or Byproducts: Emits highly toxic fumes of oxides
    )           of sulfur and chlorine containing compounds when heated to decomposition or
                on contact with acid or acid fumes (*Sax 1974)

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

                    Conditions to Avoid: Not Found

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            SECTION VI-- USE INFORMATION

                It has been used as a chemical warfare agent (*IARC 1972-1985) and as a
                chemical intermediate.  It is not produced commercially in the U.S. (*SRI).


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

                To clean up a spill, cover with up to 15 percent calcium hypochloride.
                Place in container; neutralize after 12 hours if necessary (*Rumack 1975 to
                Present). Keep sparks, flames, and other sources of ignition away. Keep
                material out of water sources and sewers. Attempt to stop leak if without
                hazard. Use water spray to knock down vapors.  Avoid breathing vapors and
                bodily contact with the material. Keep upwind. Wash away any material
                which may have contacted the body with copious amounts of soap and water.
                Downwind evacuation must be considered (Student 1981, p. 358).


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