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SODIUM CHLORITE
ICSC: 1045
Peer-Review Status: 10.04.2000 Validated
Chlorous acid, sodium salt 
CAS #: 7758-19-2 RTECS #: VZ4800000
UN #: 1496
EINECS #: 231-836-6
    Formula: NaClO2
Molecular mass: 90.44

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Not combustible but enhances combustion of other substances. Gives off irritating or toxic fumes (or gases) in a fire.  NO contact with combustible substances or reducing agents.  Use water in large amounts, water spray. NO carbon dioxide. 
EXPLOSION Risk of fire and explosion on contact with reducing agents or organic materials.    In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE   PREVENT DISPERSION OF DUST!   
Inhalation Cough. Sore throat.  Use ventilation (not if powder), local exhaust or breathing protection.  Fresh air, rest. 
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 goggles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Vomiting.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT absorb in saw-dust or other combustible absorbents.   
EC Classification
 
UN Classification
UN Hazard Class: 5.1; UN Pack Group: II 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-209 or 51G02.
NFPA Code: H1; F0; R1; OX. 
Separated from combustible substances, reducing agents, acids and incompatible materials. See Chemical Dangers. Cool. Dry. Keep in a well-ventilated room. 

IMPORTANT DATA
Physical State; Appearance
SLIGHTLY HYGROSCOPIC WHITE CRYSTALS OR FLAKES. 

Physical dangers
 

Chemical dangers
Decomposes at 200°C. This produces toxic and corrosive fumes. This generates fire and explosion hazard. The substance is a strong oxidant. It reacts violently with combustible and reducing materials. Reacts violently with acids, ammonium compounds, phosphorus, sulfur and sodium dithionate. This generates explosion hazard. 

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
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered. 

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

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Decomposes at 180-200°C
Density: 2.5 g/cm³
Solubility in water, g/100ml at 17°C: 39  
 

NOTES
Will turn shock-sensitive if contaminated with organic matter.
Rinse contaminated clothes (fire hazard) with plenty of water.
Textone is a trade name. 

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
       Sodium Chlorite (IARC Summary & Evaluation, Volume 52, 1991)