PHOSPHORUS PENTASULFIDE ICSC: 1407 Diphosphorus pentasulfide Phosphorus sulfide Thiophosphoric anhydride P2S5 Molecular mass: 222.3 ICSC #    1407 CAS #     1314-80-3 RTECS # TH4375000 UN #        1340 EC #         015-104-00-1 Types of Hazard/ Exposure Acute Hazards/ Symptoms Prevention First Aid/ Fire Fighting FIRE Flammable. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames, NO sparks, and NO smoking. NO contact with acid(s), water. Dry powder, carbon dioxide, dry sand. NO water. Explosion Risk of fire and explosion on contact with water. Finely dispersed particles form explosive mixtures in air. Do NOT expose to friction or shock. Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting. Use non-sparking handtools. Exposure PREVENT DISPERSION OF DUST! IN ALL CASES CONSULT A DOCTOR!  •Inhalation Cough. Sore throat. Local exhaust or breathing protection. Fresh air, rest. Half-upright position. Refer for medical attention.  •Skin Redness. Pain. Protective gloves. Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.  •Eyes Redness. Pain. Severe deep burns. Safety goggles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •Ingestion Nausea. Vomiting. Abdominal pain. Do not eat, drink, or smoke during work. Rinse mouth. Refer for medical attention. Spillage Disposal Storage Packaging & Labelling Personal protection: P2 filter respirator for harmful particles. Remove all ignition sources. Sweep spilled substance into dry, sealable containers. Do NOT let this chemical enter the environment. Separated from incompatible materials . See Chemical Dangers. Dry. Well closed. Keep in a well-ventilated room. F symbol Xn symbol N symbol R: 11-20/22-29-50 S: 2-61 UN Hazard Class: 4.3 UN Subsidiary Risks: 4.1 UN Packing Group: II PHOSPHORUS PENTASULFIDE ICSC: 1407 Important Data Physical State; Appearance: YELLOW TO GREEN CRYSTALS , WITH CHARACTERISTIC ODOUR. Physical Dangers: Dust explosion possible if in powder or granular form, mixed with air. Chemical Dangers: Reacts with bases , organic compounds , strong oxidants . Reacts violently with water and acids to produce hydrogen sulfide (see ICSC0165) and phophoric acid (see ICSC1008) causing fire and explosion hazard. May decompose explosively on shock, friction, or concussion. Occupational Exposure Limits: TLV: 1 mg/m3 as TWA; 3 mg/m3 as STEL; (ACGIH 2004). MAK: IIb (not established but data is available); (DFG 2004). OSHA PEL: TWA 1 mg/m3 NIOSH REL: TWA 1 mg/m3 ST 3 mg/m3 NIOSH IDLH: 250 mg/m3 See: 1314803 Routes of Exposure: The substance can be absorbed into the body by inhalation and by ingestion. Inhalation Risk: A harmful concentration of airborne particles can be reached quickly when dispersed. Effects of Short-Term Exposure: The substance is corrosive to the eyes, and is severely irritating to the skin and the respiratory tract . Effects of Long-Term or Repeated Exposure: Physical Properties Boiling point: 513-515°C Melting point: 286-290°C Density: 2.1 g/cm3 Solubility in water: reaction Auto-ignition temperature: 142°C Explosive limits, vol% in air: 0.05-? Environmental Data This substance may be hazardous in the environment; special attention should be given to aquatic organisms. N O T E S Transport Emergency Card: TEC (R)-43S1340 NFPA Code: H2; F1; R2; W ADDITIONAL INFORMATION ICSC: 1407 PHOSPHORUS PENTASULFIDE (C) IPCS, CEC, 1994 IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.