SODIUM OXIDE ICSC: 1653 Sodium monoxide Disodium oxide Disodium monoxide Na2O Molecular mass: 62.0 ICSC #    1653 CAS #     1313-59-3 UN #        1825 Types of Hazard/ Exposure Acute Hazards/ Symptoms Prevention First Aid/ Fire Fighting FIRE Not combustible but enhances combustion of other substances. NO water. Dry powder, dry sand. Explosion Exposure AVOID ALL CONTACT! PREVENT DISPERSION OF DUST! IN ALL CASES CONSULT A DOCTOR!  •Inhalation Sore throat. Cough. Burning sensation. Laboured breathing. Shortness of breath. Local exhaust. Breathing protection. Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer immediately for medical attention.  •Skin Redness. Pain. Serious skin burns. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer immediately for medical attention.  •Eyes Redness. Pain. Burns Face shield, or or eye protection in combination with breathing protection if powder. Rinse with plenty of water (remove contact lenses if easily possible). Refer immediately for medical attention.  •Ingestion Sore throat. Burning sensation in the throat and chest. Shock or collapse. Do not eat, drink, or smoke during work. Rinse mouth. Do NOT induce vomiting. Refer immediately for medical attention. Spillage Disposal Storage Packaging & Labelling Personal protection: chemical protection suit including self-contained breathing apparatus. Sweep spilled substance into dry covered plastic containers. Wash away remainder with plenty of water. Separated from strong acids, food and feedstuffs. Dry. Do not transport with food and feedstuffs. UN Hazard Class: 8 UN Packing Group: II Signal: Danger Corr Causes severe skin burns and eye damage SODIUM OXIDE ICSC: 1653 Important Data Physical State; Appearance: WHITE LUMPS OR POWDER Physical Dangers: Chemical Dangers: The solution in water is a strong base, it reacts violently with acid and is corrosive. Reacts violently with water, producing sodium hydroxide. The substance decomposes on heating (>400°C), producing sodium peroxide and sodium. Attacks many metals in the presence of water. Occupational Exposure Limits: TLV not established. MAK not established. Routes of Exposure: Serious local effects by all routes of exposure. Inhalation Risk: A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered Effects of Short-Term Exposure: The substance is corrosive to the eyes, the skin and the respiratory tract. Corrosive on ingestion. Inhalation of aerosol may cause lung oedema (see Notes). Medical observation is indicated. Effects of Long-Term or Repeated Exposure: Physical Properties Melting point: 1275°C (sublimes) Density: 2.3 g/cm3 Solubility in water: reaction Environmental Data N O T E S Reacts violently with fire extinguishing agents such as water. The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential. Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered. See ICSC 0360 Sodium hydroxide. Transport Emergency Card: TEC (R)-80GC6-II+III ADDITIONAL INFORMATION ICSC: 1653 SODIUM OXIDE (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.