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SODIUM HYPOCHLORITE (SOLUTION, ACTIVE CHLORINE <10%)
ICSC: 0482
Peer-Review Status: 19.10.1999 Validated
Sodium oxychloride
Sodium chloride oxide 
CAS #: 7681-52-9 RTECS #: NH3486300
EC #: 017-011-00-1
EINECS #: 231-668-3
    Formula: NaClO
Molecular mass: 74.44

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.    Use water spray, powder, foam, carbon dioxide. 
EXPLOSION      
 
EXPOSURE   PREVENT GENERATION OF MISTS!   
Inhalation Cough. Sore throat.  Use ventilation.  Fresh air, rest. Refer for medical attention. 
Skin Redness. Pain.  Protective gloves.  First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. 
Eyes Redness. Pain.  Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Burning sensation. Cough. Diarrhoea. Sore throat. Vomiting.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: filter respirator for inorganic gases and vapours adapted to the airborne concentration of the substance and chemical protection suit. Ventilation. Wash away spilled liquid with plenty of water. Do NOT absorb in saw-dust or other combustible absorbents.   
EC Classification
Symbol: Xi; R: 31-36/38; S: (1/2)-28-45-50-61; Note: B 
UN Classification
 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
  Separated from acids. See Chemical Dangers. Cool. Keep in the dark. Well closed. 

IMPORTANT DATA
Physical State; Appearance
CLEAR SLIGHTLY YELLOW SOLUTION WITH CHARACTERISTIC ODOUR. 

Physical dangers
 

Chemical dangers
Decomposes on heating and on contact with acids. Decomposes under the influence of light. This produces toxic and corrosive gases including chlorine (see ICSC 0126). The substance is a strong oxidant. It 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 at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. 

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Relative density (water = 1): 1.1 (5.5% aqueous solution)   The substance is toxic to aquatic organisms. 

NOTES
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%).
Card has been partially updated in July 2007: see Ingestion First Aid, EU Classification . 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations