IPCS INCHEM Home
SODIUM THIOCYANATEICSC: 0675
October 2004
CAS #: 540-72-7Thiocyanic acid, sodium salt
Sodium sulfocyanate
Sodium rhodanide
EINECS #: 208-754-4

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.        In case of fire in the surroundings, use appropriate extinguishing media.   

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Further see Ingestion.  Use local exhaust or breathing protection.  Fresh air, rest. 
Skin   Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
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 Nausea. Vomiting. Diarrhoea. Weakness. Confusion. Convulsions.  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 CLASSIFICATION & LABELLING
Sweep spilled substance into covered containers. Carefully collect remainder. Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
Separated from acids, bases, oxidants and food and feedstuffs. Dry. Well closed. 
PACKAGING
 
SODIUM THIOCYANATE ICSC: 0675
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS HYGROSCOPIC CRYSTALS OR WHITE POWDER. 

Physical dangers
 

Chemical dangers
Decomposes on heating. This produces toxic fumes including sulfur oxides, nitrogen oxides, sodium oxide and cyanides. Reacts violently with acids, strong bases and strong oxidants. 

Formula: NaSCN
Molecular mass: 81.1
Decomposes at 368°C
Melting point: ~300°C
Density: 1.7 g/cm³
Solubility in water, g/100ml at 21°C: 139  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
 

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

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

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


Occupational exposure limits
 

ENVIRONMENT
 

NOTES
 

ADDITIONAL INFORMATION
  EC Classification
Symbol: Xn; R: 20/21/22-32-52/53; S: (2)-13-61; Note: A 

All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.
    See Also:
       Toxicological Abbreviations
       SODIUM THIOCYANATE (JECFA Evaluation)