BARIUM PEROXIDE ICSC: 0381 Barium dioxide Barium superoxide BaO2 Molecular mass: 169.3 ICSC #    0381 CAS #     1304-29-6 RTECS # CR0175000 UN #        1449 EC #         056-001-00-1 Types of Hazard/ Exposure Acute Hazards/ Symptoms Prevention First Aid/ Fire Fighting FIRE Not combustible but enhances combustion of other substances. NO contact with combustibles reducing agents and acid(s) . In case of fire in the surroundings: all extinguishing agents allowed. Explosion Risk of fire and explosion on contact with combustible substances and reducing agents . Exposure PREVENT DISPERSION OF DUST! STRICT HYGIENE!  •Inhalation Burning sensation. Cough. Laboured breathing. Shortness of breath. Sore throat. (See Ingestion). Local exhaust or breathing protection. Fresh air, rest. Half-upright position. Artificial respiration if indicated. Refer for medical attention.  •Skin Redness. Skin burns. Pain. Protective gloves. Protective clothing. First rinse with plenty of water, then remove contaminated clothes and rinse again.  •Eyes Redness. Pain. Blurred vision. Safety goggles, or face shield, or eye protection in combination with breathing protection if powder. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •Ingestion Abdominal pain. Vomiting. Diarrhoea. Do not eat, drink, or smoke during work. Rinse mouth. Do NOT induce vomiting. Refer for medical attention. Spillage Disposal Storage Packaging & Labelling Sweep spilled substance into containers, then remove to safe place. Do NOT absorb in saw-dust or other combustible absorbents. Do NOT let this chemical enter the environment. (Extra personal protection: P2 filter respirator for harmful particles). Separated from combustible and reducing substances, food and feedstuffs . Dry. Do not transport with food and feedstuffs. O symbol Xn symbol R: 8-20/22 S: 2-13-27 UN Hazard Class: 5.1 UN Subsidiary Risks: 6.1 UN Packing Group: II BARIUM PEROXIDE ICSC: 0381 Important Data Physical State; Appearance: WHITE OR GREY TO WHITE POWDER. Physical Dangers: Chemical Dangers: The substance decomposes on heating and on contact with water or acids producing oxygen and hydrogen peroxide , which increases fire hazard. The substance is a strong oxidant and reacts violently with combustible and reducing materials. Occupational Exposure Limits: TLV: (as Ba) 0.5 mg/m3 as TWA A4 (not classifiable as a human carcinogen); (ACGIH 2005). MAK: 0.5 mg/m3 (Inhalable fraction) Peak limitation category: II(2) (DFG 2005). Routes of Exposure: The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. Inhalation Risk: Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed. Effects of Short-Term Exposure: The substance irritates the eyes , the skin and the respiratory tract . The substance may cause effects on the nervous system . Exposure could cause hypokalaemia , resulting in cardiac disorders and muscular disorders. Effects of Long-Term or Repeated Exposure: Physical Properties Decomposes below boiling point at 800°C Melting point: 450°C Relative density (water = 1): 5.0 Solubility in water: poor Environmental Data The substance is harmful to aquatic organisms. N O T E S Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. Rinse contaminated clothes (fire hazard) with plenty of water. Transport Emergency Card: TEC (R)-51G12 NFPA Code: H1; F0; R0; ox ADDITIONAL INFORMATION ICSC: 0381 BARIUM PEROXIDE (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.