SODIUM HYPOCHLORITE (SOLUTION, ACTIVE CHLORINE >10%) ICSC: 1119 Sodium oxychloride Sodium chloride oxide NaClO Molecular mass: 74.4 ICSC #    1119 CAS #     7681-52-9 RTECS # NH3486300 UN #        1791 EC #         017-011-00-1 Types of Hazard/ Exposure Acute Hazards/ Symptoms Prevention First Aid/ Fire Fighting FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire. Powder, water spray, foam, carbon dioxide. Explosion In case of fire: keep drums, etc., cool by spraying with water. Exposure STRICT HYGIENE!  •Inhalation Burning sensation. Cough. Laboured breathing. Shortness of breath. Sore throat. Symptoms may be delayed (see Notes). Ventilation, local exhaust, or breathing protection. Fresh air, rest. Half-upright position. Refer for medical attention.  •Skin Redness. Skin burns. Pain. Blisters. Protective gloves. Protective clothing. First rinse with plenty of water, then remove contaminated clothes and rinse again. Refer for medical attention.  •Eyes Redness. Pain. Severe deep burns. Face shield, or eye protection in combination with breathing protection. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •Ingestion Abdominal pain. Burning sensation. Shock or collapse. Unconsciousness. Vomiting. Do not eat, drink, or smoke during work. Rinse mouth. Do NOT induce vomiting. Refer for medical attention. Spillage Disposal Storage Packaging & Labelling Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible. Then wash away with plenty of water. Do NOT absorb in saw-dust or other combustible absorbents. Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Separated from combustible and reducing substances, acids, food and feedstuffs . See Chemical Dangers. Cool. Keep in the dark. Well closed. Do not transport with food and feedstuffs. Note: B C symbol N symbol R: 31-34-50 S: 1/2-28-45-50-61 UN Hazard Class: 8 UN Packing Group: II, III SODIUM HYPOCHLORITE (SOLUTION, ACTIVE CHLORINE >10%) ICSC: 1119 Important Data Physical State; Appearance: CLEAR, YELLOWISH SOLUTION , WITH CHARACTERISTIC ODOUR. Physical Dangers: Chemical Dangers: The substance decomposes on heating, on contact with acidsand under influence of light producing toxic and corrosive gasesincluding chlorine (see ICSC 0126). The substance is a strong oxidant and reacts violently with combustible and reducing materials, causing fire and explosion hazard. The solution in water is a strong base, it reacts violently with acid and is corrosive. Attacks many metals. Occupational Exposure Limits: TLV not established. Routes of Exposure: The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. Inhalation Risk: No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C. 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). The effects may be delayed. Medical observation is indicated. Effects of Long-Term or Repeated Exposure: Repeated or prolonged contact may cause skin sensitization. Physical Properties Relative density (water = 1): 1.21 (14% aqueous solution) Environmental Data The substance is toxic to aquatic organisms. N O T E S Household bleaches usually contain about 5% sodium hypochlorite (about pH11, irritant), and more concentrated bleaches contain 10-15% sodium hypochlorite (about pH13, corrosive). 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 is therefore essential. Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered. Rinse contaminated clothes (fire hazard) with plenty of water. Chloros, Chlorox, Clorox, Deosan, Javex, Klorocin, Parozone and Purin B are trade names. Also consult ICSC #0482 (Sodium hypochlorite, active chlorine <10%). Card has been partly updated in October 2004. See sections Occupational Exposure Limits, EU classification, Emergency Response. Transport Emergency Card: TEC (R)-80S1791 ADDITIONAL INFORMATION ICSC: 1119 SODIUM HYPOCHLORITE (SOLUTION, ACTIVE CHLORINE >10%) (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.