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POTASSIUM THIOCYANATE
ICSC: 1088
Peer-Review Status: 21.04.2004 Validated
Thiocyanic acid, potassium salt
Potassium sulfocyanate
Potassium rhodanide 
CAS #: 333-20-0 RTECS #: XL1925000
EC #: 615-004-00-3
EINECS #: 206-370-1
    Formula: KSCN
Molecular mass: 97.18

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!   
Inhalation Cough. Further see Ingestion.  Use local exhaust or breathing protection.  Fresh air, rest. 
Skin   Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes   Wear safety goggles or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Confusion. Convulsions. Nausea. Vomiting. Weakness.  Do not eat, drink, or smoke during work.  Rinse mouth. Give a slurry of activated charcoal in 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. If appropriate, moisten first to prevent dusting. Carefully collect remainder.   
EC Classification
Symbol: Xn; R: 20/21/22-32-52/53; S: (2)-13-61; Note: A 
UN Classification
 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: H3; F0; R0.  Separated from strong oxidants. Dry. Well closed. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS-TO-WHITE HYGROSCOPIC CRYSTALS. 

Physical dangers
 

Chemical dangers
Decomposes on heating. This produces very toxic fumes of sulfur compounds; nitrogen oxides and cyanides. Reacts violently with strong oxidants. Contact with water causes a strong cooling effect. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

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

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed. 

Effects of short-term exposure
The substance may cause effects on the central nervous system. This may result in excitement and convulsions. 

Effects of long-term or repeated exposure
The substance may have effects on the thyroid and central nervous system. This may result in impaired functions and hypothyroidism. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Decomposes at 500°C
Melting point: 173°C
Density: 1.9 g/cm³
Solubility in water: very good 
 

NOTES
 

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