SODIUM SULFIDE (ANHYDROUS) ICSC: 1047 Sodium monosulfide Sodium sulphide Na2S Molecular mass: 78.04 ICSC #    1047 CAS #     1313-82-2 RTECS # WE1905000 UN #        1385 EC #         016-009-00-8 Types of Hazard/ Exposure Acute Hazards/ Symptoms Prevention First Aid/ Fire Fighting FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames, NO sparks, and NO smoking. NO contact with acid(s),oxidants. Water in large amounts, water spray, foam, dry powder. Explosion Exposure AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!  •Inhalation Cough. Burning sensation. Laboured breathing. Shortness of breath. Sore throat. Closed system and ventilation. Fresh air, rest. Refer for medical attention.  •Skin Redness. Pain. Skin burns. Blisters. Protective gloves. Protective clothing. First rinse with plenty of water, then remove contaminated clothes and rinse again. Refer for medical attention.  •Eyes Redness. Pain. Blurred vision. Severe deep burns. Face shield, or eye protection in combination with breathing protection. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •Ingestion Abdominal pain. Burning sensation. Shock or collapse. Do not eat, drink, or smoke during work. Do NOT induce vomiting. Give plenty of water to drink. Refer for medical attention. Spillage Disposal Storage Packaging & Labelling Remove all ignition sources. Cover the spilled material with dry earth or sand. Sweep spilled substance into containers. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. Chemical protection suit including self-contained breathing apparatus. Separated from acids, oxidants . Keep in a well-ventilated room. Dry. Airtight. C symbol N symbol R: 31-34-50 S: 1/2-26-45-61 UN Hazard Class: 4.2 UN Packing Group: II SODIUM SULFIDE (ANHYDROUS) ICSC: 1047 Important Data Physical State; Appearance: WHITE TO YELLOW HYGROSCOPIC CRYSTALS , WITH CHARACTERISTIC ODOUR. Physical Dangers: Chemical Dangers: The substance decomposes on burning, on contact with acids , water , producing toxic and corrosive gases , which increases fire hazard. The solution in water is a strong base, it reacts violently with acid and is corrosive. Reacts violently with oxidants . Occupational Exposure Limits: TLV not established. Routes of Exposure: The substance can be absorbed into the body by inhalation and through the skin 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, the skin and the respiratory tract. Corrosive on ingestion. Effects of Long-Term or Repeated Exposure: Physical Properties Melting point (decomposes): 920-950°C Density: 1.86 g/cm3 Auto-ignition temperature: > 480°C Octanol/water partition coefficient as log Pow: -3.5 Environmental Data This substance may be hazardous in the environment; special attention should be given to aquatic organisms. N O T E S Other UN number: 1849, sodium sulfide, hydrated with 30% or more water, hazard class 8, packaging group II. Other melting points: 1180°C in vacuum. Card has been partly updated in April 2005. See section Emergency Response. Transport Emergency Card: TEC (R)-42GS4-II+III NFPA Code: H3; F1; R1; ADDITIONAL INFORMATION ICSC: 1047 SODIUM SULFIDE (ANHYDROUS) (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.