International Chemical Safety Cards SODIUM HYPOCHLORITE (SOLUTION, ACTIVE CHLORINE <10%) ICSC: 0482 Sodium oxychloride Sodium chloride oxide NaClO Molecular mass: 74.44 ICSC #    0482 CAS #     7681-52-9 RTECS # NH3486300 EC #         017-011-00-1 October 19, 1999 Peer reviewed 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 EXPOSURE PREVENT GENERATION OF MISTS!  •INHALATION Cough. Sore throat. Ventilation. Fresh air, rest. Refer for medical attention.  •SKIN Redness. Pain. Protective gloves. First rinse with plenty of water, then remove contaminated clothes and rinse again.  •EYES Redness. Pain. Safety spectacles. 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. Cough. Diarrhoea. Sore throat. Vomiting. Do not eat, drink, or smoke during work. Rinse mouth. Give plenty of water to drink. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Ventilation. Wash away spilled liquid with plenty of water. Do NOT absorb in saw-dust or other combustible absorbents. In case of a large spillage use, personal protection: self-contained breathing apparatus. Separated from acids. See Chemical Dangers. Cool. Keep in the dark. Well closed. Note: B Xi symbol R: 31-36/38 S: 1/2-28-45-50 SEE IMPORTANT INFORMATION ON BACK ICSC: 0482 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards SODIUM HYPOCHLORITE (SOLUTION, ACTIVE CHLORINE <10%) ICSC: 0482 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: CLEAR, SLIGHTLY YELLOW SOLUTION , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on heating, on contact with acids and under influence of light producing toxic and corrosive gasesincludingchlorine (see ICSC 0126). The substance is a strong oxidant and reacts with combustible and reducing materials. The solution in water is a weak base. 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 irritates the eyes , the skin and the respiratory tract . EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact may cause skin sensitization. PHYSICAL PROPERTIES Relative density (water = 1): 1.1 (5.5% 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). Rinse contaminated clothes (fire hazard) with plenty of water. Clorox and Javel water are trade names. Also consult ICSC #1119 (Sodium hypochlorite, active chlorine >10%). ADDITIONAL INFORMATION ICSC: 0482 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.