POTASSIUM ICSC: 0716 Kalium K Atomic mass: 39.1 ICSC #    0716 CAS #     7440-09-7 RTECS # TS6460000 UN #        2257 EC #         019-001-00-2 Types of Hazard/ Exposure Acute Hazards/ Symptoms Prevention First Aid/ Fire Fighting FIRE Highly flammable. Many reactions may cause fire or explosion. Gives off irritating or toxic fumes (or gases) in a fire. NO contact with water, acid(s) or halogens . NO open flames, NO sparks, and NO smoking. Special powder, dry sand, NO other agents. Explosion Risk of fire and explosion. on contact with acid(s) , halogens , water . Combat fire from a sheltered position. Exposure  •Inhalation Cough. Sore throat. Burning sensation. Closed system and ventilation. Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.  •Skin Pain. Blisters. Serious skin burns. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.  •Eyes Severe deep burns. loss of vision. Face shield . First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •Ingestion Burning sensation. Shock or collapse. 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! Chemical protection suit including self-contained breathing apparatus. Cover the spilled material with dry powder. Fireproof. Keep under mineral oil. Dry. Well closed. Airtight. Unbreakable packaging; put breakable packaging into closed unbreakable container. F symbol C symbol R: 14/15-34 S: (1/2)-5-8-45 UN Hazard Class: 4.3 UN Packing Group: I Signal: Danger Flame-Corr In contact with water releases flammable gases which may ignite spontaneously Causes severe skin burns and eye damage POTASSIUM ICSC: 0716 Important Data Physical State; Appearance: WHITE TO GREY LUMPS Physical Dangers: Chemical Dangers: Reacts violently with water , causing fire and explosion hazard . The substance decomposes rapidly under the influence of air and moisture , forming flammable/explosive gas (Hydrogen - see ICSC0001) . Occupational Exposure Limits: TLV not established. MAK not established. Routes of Exposure: Serious local effects by all routes of exposure. Inhalation Risk: Effects of Short-Term Exposure: See ICSC 0357 (Potassium hydroxide) Effects of Long-Term or Repeated Exposure: Physical Properties Boiling point: 765.5°C Melting point: 63.2°C Density: 0.856 g/cm3 Solubility in water, g/100 ml: (reaction) Vapour pressure, Pa at 20°C: negligible Environmental Data N O T E S Potassium is always kept under mineral oil. Reacts violently with fire extinguishing agents such as water and carbon dioxide . Transport Emergency Card: TEC (R)-43S2257a NFPA Code: H3; F3; R2; ADDITIONAL INFORMATION ICSC: 0716 POTASSIUM (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.