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SODIUM CHLORITEICSC: 1045
April 2000
CAS #: 7758-19-2Chlorous acid, sodium salt
UN #: 1496
EINECS #: 231-836-6

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible but enhances combustion of other substances. Gives off irritating or toxic fumes (or gases) in a fire.  Risk of fire and explosion on contact with reducing agents or organic materials.  NO contact with combustible substances or reducing agents.    Use water in large amounts, water spray. NO carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
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 CLASSIFICATION & 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. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 5.1; UN Pack Group: II 

STORAGE
Separated from combustible substances, reducing agents, acids and incompatible materials. See Chemical Dangers. Cool. Dry. Keep in a well-ventilated room. 
PACKAGING
 
SODIUM CHLORITE ICSC: 1045
PHYSICAL & CHEMICAL INFORMATION

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. 

Formula: NaClO2
Molecular mass: 90.44
Decomposes at 180-200°C
Density: 2.5 g/cm³
Solubility in water, g/100ml at 17°C: 39  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. 

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

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 long-term or repeated exposure
 


Occupational exposure limits
 

ENVIRONMENT
 

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

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations
       Sodium Chlorite (IARC Summary & Evaluation, Volume 52, 1991)