International Chemical Safety Cards (WHO/IPCS/ILO)International Chemical Safety Cards NITROGEN (GASEOUS) ICSC: 1198 NITROGEN (GASEOUS) Azote Nitrogen (Compressed) (cylinder) N2 Molecular mass: 28.01 CAS # 7727-37-9 RTECS # QW9700000 ICSC # 1198 UN # 1066 TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible. In case of fire in the surroundings: all extinguishing agents allowed. EXPLOSION In case of fire: keep cylinder cool by spraying with water. EXPOSURE INHALATION Unconsciousness. Weakness. Death. See Notes. Ventilation. Breathing protection. Fresh air, rest. Artificial respiration if indicated. Oxygen may be beneficial if administered by a trained person on physician's advice. Refer for medical attention. SKIN EYES INGESTION SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Ventilation (extra personal protection: self-contained breathing apparatus). Cool. Keep in a well-ventilated room. UN Hazard Class: 2.2 SEE IMPORTANT INFORMATION ON BACK ICSC: 1198 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993 International Chemical Safety Cards NITROGEN (GASEOUS) ICSC: 1198 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: ODOURLESS, COLOURLESS, TASTELESS, COMPRESSED GAS. PHYSICAL DANGERS: Gas mixes readily with air. CHEMICAL DANGERS: Reacts with oxygen and hydrogen on sparking forming nitric oxide and ammonia. Combines directly with lithium and at red heat with calcium, srontium and barium to form nitrides. Forms cyanides when heated with carbon in presence of alkalies or barium oxides. OCCUPATIONAL EXPOSURE LIMITS (OELs): TLV not established. ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation. INHALATION RISK: A harmful concentration of this gas in the air will be reached very quickly on loss of containment. On loss of containment this gas can cause suffocation by lowering the oxygen content of the air in confined areas. See Notes. EFFECTS OF SHORT-TERM EXPOSURE: EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Boiling point: -195.8°C Melting point: -210°C Solubility in water: none Relative vapour density (air = 1): 0.97 ENVIRONMENTAL DATA NOTES High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death. Check oxygen content before entering area. Effects are the result of oxygen deficiency. Do not attempt rescue without air supplied respirator. Transport Emergency Card: TEC (R)-20G01 ADDITIONAL INFORMATION ICSC: 1198 NITROGEN (GASEOUS) © IPCS, CEC, 1993 IMPORTANT LEGAL NOTICE: Neither the CEC or the IPCS nor any person acting on behalf of 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.