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s=a:�r�aams=�aaamaa m�assa�aa+��a�ra sa�aaaa-.aaRsm.--.o.-•.. <br /> OCCUPATIONAL CONMOL PROCEDURES (CONTINUED) <br /> Product: Phosphoric acid (liberated `n presence of water) <br /> (CAS No. 7664-38-2) <br /> OSHA ?EL: 1 mg/m3 8-hour time-weighted average <br /> ACGIH TLV: 1 mg/m3 8-hour tine-weighted average <br /> 3 mg/33 short-ter- exposure limit <br /> s a�ssa^�=a�sa aa�a:as a a:a a=a aa=aac.. <br /> FIRE PROTECTION INFORMATION <br /> as asaaaa<aysaas a�asa:�a ass��sa <br /> Phosphorus Pentasulf'_de is ignitible upon exposure to flame, friction, static <br /> electricity and struck sparks at room temperature and will spc.:aneously ignite <br /> at temperatures it the neighborhood of the melting point (275-230°C) . At low <br /> temperatures it burns slowly unless it is dispersed in air, and then it burns <br /> rapidly. The dust �rreseat� a explosion problem. in addition, Hydrogen <br /> Sulfide, which is a flammable gas , is liberated in the presence .)f moisture. <br /> Extinguishing <br /> Media: Use CO2, dry chemical or cover with dry sand. <br /> Special Firefighting <br /> Procedures: Firefighters must wear full protective clothing <br /> including self-contained breathing apparatus with full <br /> face mask. Equipment must be thoroughly decontaminated <br /> after use. Sulfer Dioxide and Phosphorus Pentoxide <br /> result from combustion of Phosphorus ?entasulfide. <br /> Unusual Fire and <br /> Explosion Hazards: Some product/air mixtures may be explosive. Eliminate <br /> ignition sources and prevent build-up of static <br /> electric charges . Ground all equipment. <br /> REACTIVITY DATA <br /> Hydrogen Sulfide Sulfide (H2S) is liberated as a by-product of most known reactions of <br /> PISS, e.g. , with alcohols, phenols, mecapcans , amines , aqueous acids and dilute <br /> caustic solutions. <br /> Materials to Avoid: Avoid contact with :rater from an soc-_e during <br /> storage - H1S gas and Phosphoric Aci4 are liberated. <br /> Hazardous Decompos+. =ion <br /> Products: Sulfur Dioxide and Phosphorus Pentoxide are formed <br /> upon combustion. <br /> Hazardous Polymerization. . yes not •_cur. <br />