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alpha-NAPHTHYLTHIOUREA
ICSC: 0973
Peer-Review Status: 04.11.2000 Validated
Antu
1-(1-Naphthyl)-2-thiourea
1-Naphtylthiourea 
CAS #: 86-88-4 RTECS #: YT9275000
UN #: 1651
EC #: 006-008-00-0
EINECS #: 201-706-3
    Formula: C11H10N2S / C10H7NHCSNH2
Molecular mass: 202.3

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible under specific conditions. Gives off irritating or toxic fumes (or gases) in a fire.    Use water spray, powder, foam, carbon dioxide. 
EXPLOSION      
 
EXPOSURE   PREVENT DISPERSION OF DUST! STRICT HYGIENE!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Cough. Laboured breathing. Shortness of breath.  Use local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. 
Skin MAY BE ABSORBED!  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes   Wear safety goggles, face shield 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 Abdominal pain. Vomiting. Laboured breathing.  Do not eat, drink, or smoke during work. Wash hands before eating.  Give a slurry of activated charcoal in water to drink. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). 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. Then store and dispose of according to local regulations.  Do not transport with food and feedstuffs. 
EC Classification
Symbol: T+; R: 28-40; S: (1/2)-25-36/37-45 
UN Classification
UN Hazard Class: 6.1; UN Pack Group: II 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61G12B.  Separated from strong oxidants, silver nitrate and food and feedstuffs. 

IMPORTANT DATA
Physical State; Appearance
WHITE ODOURLESS CRYSTALLINE POWDER. 

Physical dangers
 

Chemical dangers
Decomposes on heating. This produces toxic gases and toxic fumes including nitrogen oxides, sulfur oxides and carbon monoxide. Reacts with strong oxidants such as silver nitrate. This generates fire and explosion hazard. 

Occupational exposure limits
TLV: 0.3mg/m³ as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 1999). 

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

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly. 

Effects of short-term exposure
Exposure could cause lung oedema. Medical observation is indicated. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Decomposes: see Notes.
Melting point: 198°C
Density: >1 g/cm³
Solubility in water: none
Octanol/water partition coefficient as log Pow: 1.66 (calculated) 
 

NOTES
Commonly present impurities can change the toxicological properties of this substance; consult an expert.
Technical product is a blue-grey powder.
Temperature of decomposition unknown in literature.
Do NOT take working clothes home.
Anturate, Bantu, Kill Kantz, Krysid, Rattrack and Rat-tu are trade names. 

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