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ALLYL ISOTHIOCYANATE
ICSC: 0372
Peer-Review Status: 10.07.1997 Validated
Allyl isosulfocyanate
2-Propenyl isothiocyanate
3-Isothiocyanato-1-propene 
CAS #: 57-06-7 RTECS #: NX8225000
UN #: 1545 (stabilized)
EINECS #: 200-309-2
    Formula: C4H5NS / CH2=CHCH2N=C=S
Molecular mass: 99.2

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Flammable. Gives off irritating or toxic fumes (or gases) in a fire.  NO open flames, NO sparks and NO smoking.  Use powder, AFFF, foam, carbon dioxide. 
EXPLOSION Above 46°C explosive vapour/air mixtures may be formed.  Above 46°C use a closed system, ventilation and explosion-proof electrical equipment.  In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE   PREVENT GENERATION OF MISTS! STRICT HYGIENE!   
Inhalation Cough. Sore throat.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin MAY BE ABSORBED! Redness. Pain.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Redness. Pain.  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 Sore throat. Burning sensation.  Do not eat, drink, or smoke during work.  Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Evacuate danger area! Personal protection: complete protective clothing including self-contained breathing apparatus. Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.  Do not transport with food and feedstuffs. 
EC Classification
 
UN Classification
UN Hazard Class: 6.1; UN Subsidiary Risks: 3; UN Pack Group: II 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61S1545.
NFPA Code: H3; F2; R0. 
Fireproof. Separated from strong oxidants, acids and food and feedstuffs. Well closed. Store only if stabilized. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS-TO-PALE-YELLOW OILY LIQUID WITH PUNGENT ODOUR. 

Physical dangers
 

Chemical dangers
Decomposes on heating and on burning. Decomposes on contact with acids. This produces highly toxic fumes including nitrogen oxides and sulfur oxides. Reacts with strong oxidants. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

Routes of exposure
The substance can be absorbed into the body by inhalation of its vapour, through the skin and by ingestion. 

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

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

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the liver, kidneys, stomach, thyroid and bladder. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 148-154°C
Melting point: -102.5°C
Relative density (water = 1): 1.0
Solubility in water: poor
Vapour pressure, kPa at 20°C: 0.493
Relative vapour density (air = 1): 3.4
Flash point: 46°C c.c.
Octanol/water partition coefficient as log Pow: 2.11  
 

NOTES
An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert.
Mustard oil is a commonly used name.
Card has been partly updated in October 2005.
See section Emergency Response. 

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
       ALLYL ISOTHIOCYANATE (JECFA Evaluation)