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TETRYL
ICSC: 0959
Peer-Review Status: 10.07.1997 Validated
N-Methyl-N,2,4,6-tetranitroaniline
Picrylnitromethylamine
Nitramine 
CAS #: 479-45-8 RTECS #: BY6300000
UN #: 0208
EC #: 612-017-00-6
EINECS #: 207-531-9
    Formula: C7H5N5O8 / (NO2)3C6H2N(CH3)NO2
Molecular mass: 287.15

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Gives off irritating or toxic fumes (or gases) in a fire.  NO open flames, NO sparks and NO smoking. NO contact with hot surfaces.  Do not attempt to extinguish large fire, evacuate area. 
EXPLOSION Finely dispersed particles form explosive mixtures in air. Risk of fire and explosion when exposed to heat or flame. Explosive.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding). Do NOT expose to friction or shock. Prevent deposition of dust.  In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position. 
 
EXPOSURE   PREVENT DISPERSION OF DUST!   
Inhalation Abdominal pain. Cough. Diarrhoea. Headache. Sore throat. Nosebleeds.  Use local exhaust or breathing protection.  Fresh air, rest. Artificial respiration may be needed. Refer for medical attention. 
Skin Redness. Yellow staining of the skin.  Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Wear protective gloves when administering first aid. 
Eyes Redness. Pain.  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 Nausea. See Inhalation.  Do not eat, drink, or smoke during work.  Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Personal protection: P3 filter respirator for toxic particles.   
EC Classification
Symbol: E, T; R: 2-23/24/25-33; S: (1/2)-35-45 
UN Classification
UN Hazard Class: 1.1D 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
  Fireproof. Separated from strong oxidants. Keep in the dark. Keep in a separate building protected from shock. 

IMPORTANT DATA
Physical State; Appearance
ODOURLESS COLOURLESS-TO-YELLOW CRYSTALS. 

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. 

Chemical dangers
May decompose explosively on shock, friction or concussion. Decomposes explosively on heating to 187°C. Reacts with some oxidants. This generates fire and explosion hazard. 

Occupational exposure limits
TLV: 1.5mg/m³ as TWA; (ACGIH 1997).
MAK: Carcinogen category: 3B; Skin absorption (H); Sensitization of skin (SH); (DFG 2008). 

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 when dispersed. 

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the nervous system. 

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation may cause asthma. The substance may have effects on the liver, kidneys and blood. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Melting point: 130°C
Relative density (water = 1): 1.57
Solubility in water: none
Vapour pressure, kPa at 20°C: <0.1
Flash point: explodes in air at 187°C 
 

NOTES
Card has been partially updated in November 2008: see Occupational Exposure Limits. 

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