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SODIUM IODIDE (ANHYDROUS)
ICSC: 1009
Peer-Review Status: 20.04.2005 Validated
Sodium monoiodide 
CAS #: 7681-82-5 RTECS #: WB6475000
EINECS #: 231-679-3
    Formula: NaI
Molecular mass: 149.9

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.    In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION      
 
EXPOSURE   PREVENT DISPERSION OF DUST! AVOID EXPOSURE OF (PREGNANT) WOMEN!   
Inhalation Cough. Sore throat. Headache.  Use ventilation (not if powder), local exhaust or breathing protection.  Fresh air, rest. 
Skin Redness.  Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes Redness.  Wear safety goggles or eye protection in combination with breathing protection if powder.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Diarrhoea. Nausea. 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: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers.   
EC Classification
 
UN Classification
 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
  Separated from strong oxidants and food and feedstuffs. Dry. Well closed. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS-TO-WHITE HYGROSCOPIC CRYSTALS OR WHITE POWDER. TURNS BROWN ON EXPOSURE TO AIR. 

Physical dangers
 

Chemical dangers
Reacts violently with strong oxidants. This produces iodine fumes. 

Occupational exposure limits
TLV (inhalable vapor and aerosol): 0.01ppm as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2008). 

Routes of exposure
The substance can be absorbed into the body by ingestion. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly , 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
Ingestion may cause effects on the thyroid. May cause systemic sensitization. See Notes. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 1304°C
Melting point: 660°C
Density: 3.67 g/cm³
Solubility in water, g/100ml at 25°C: 184  
 

NOTES
Health effects apply also to Sodium iodide dihydrate CAS 13517-06-1.
Symptoms of systemic sensitization may include airway obstruction and various skin reactions or even anaphylactic shock.
Exposure during pregnancy may affect the thyroid function of the newborn.
Card has been partially updated in November 2008: see Occupational Exposure Limits, Ingestion First Aid. 

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