CYCLOTETRAMETHYLENE TETRANITRAMINE ICSC: 1575 HMX Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine Octogen C4H8N8O8 Molecular mass: 296.2 ICSC #    1575 CAS #     2691-41-0 RTECS # XF7450000 UN #        0226 (wet), 0484 (desensitized) Types of Hazard/ Exposure Acute Hazards/ Symptoms Prevention First Aid/ Fire Fighting FIRE Explosive. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames, NO sparks, and NO smoking. In case of fire in the surroundings: use appropriate extinguishing media. Explosion Risk of fire and explosion. Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT expose to friction or shock. Combat fire from a sheltered position. Exposure  •Inhalation See Ingestion. Ventilation (not if powder), local exhaust, or breathing protection. Fresh air, rest.  •Skin MAY BE ABSORBED! Redness. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse and then wash skin with water and soap.  •Eyes Redness. Pain. Safety spectacles, 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 Confusion. Drowsiness. Convulsions. Unconsciousness. Do not eat, drink, or smoke during work. Rinse mouth. Refer for medical attention. Spillage Disposal Storage Packaging & Labelling Evacuate danger area! Consult an expert! Remove all ignition sources. Personal protection: chemical protection suit. Cover the spilled material with water. Carefully collect remainder, then remove to safe place. Do NOT wash away into sewer. Do NOT let this chemical enter the environment. Fireproof. Separated from strong bases, strong acids. Store in an area without drain or sewer access. UN Hazard Class: 1.1D UN Packing Group: II CYCLOTETRAMETHYLENE TETRANITRAMINE ICSC: 1575 Important Data Physical State; Appearance: COLOURLESS CRYSTALS Physical Dangers: As a result of flow, agitation, etc., electrostatic charges can be generated. Dust explosion possible if in powder or granular form, mixed with air. Chemical Dangers: Heating may cause violent combustion or explosion. May decompose explosively on shock, friction, or concussion. The substance decomposes on heating producing toxic gases including nitrogen oxides . Reacts violently with acids and bases . Occupational Exposure Limits: TLV not established. MAK not established. Routes of Exposure: The substance can be absorbed into the body by inhalation of its aerosol, 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 irritating to the eyes and the skin . The substance may cause effects on the central nervous system , resulting in irritability , convulsions and lowering of consciousness . Medical observation is indicated. Effects of Long-Term or Repeated Exposure: The substance may have effects on the kidneys and liver . Physical Properties Melting point: 275°C Density: 1.9 g/cm3 Solubility in water: none Vapour pressure, Pa at 25°C: <0.1 Auto-ignition temperature: 234°C Environmental Data This substance may be hazardous in the environment; special attention should be given to aquatic organisms. N O T E S Combustion in a confined space may turn into detonation. The substance may be transported only in water (15%) or desensitized with wax. Transport Emergency Card: TEC (R)-10G1.1 ADDITIONAL INFORMATION ICSC: 1575 CYCLOTETRAMETHYLENE TETRANITRAMINE (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.