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PICRIC ACID
ICSC: 0316
Peer-Review Status: 04.09.2008 Validated
2,4,6-Trinitrophenol
Picronitric acid
Phenol trinitrate
2-Hydroxy-1,3,5-trinitrobenzene
Carbazotic acid
Carbonitric acid
Nitrophenesic acid
Nitroxanthic acid 
CAS #: 88-89-1 RTECS #: TJ7875000
UN #: 0154 (see Notes)
EC #: 609-009-00-X
EINECS #: 201-865-9
    Formula: C6H2(NO2)3OH
Molecular mass: 229.1

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible. Many reactions may cause fire or explosion. See Notes.  NO open flames, NO sparks and NO smoking.  Use water in large amounts. 
EXPLOSION Risk of fire and explosion.  Do NOT expose to friction or shock. Use non-sparking handtools. Prevent deposition of dust. Closed system, dust explosion-proof electrical equipment and lighting.  In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE   PREVENT DISPERSION OF DUST!   
Inhalation Headache. Nausea. Vomiting.  Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin   Protective gloves.  Rinse and then wash skin with water and soap. Seek medical attention if you feel unwell. 
Eyes Redness.  Wear safety goggles.  Rinse with plenty of water for several minutes (remove contact lenses if easily possible). 
Ingestion Headache. Dizziness. Nausea. Vomiting. Diarrhoea.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Remove all ignition sources. Evacuate danger area! Consult an expert! Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT let this chemical enter the environment.  Special material. 
EC Classification
Symbol: E, T; R: 3-4-23/24/25; S: (1/2)-28-35-36/37-45 
UN Classification
UN Hazard Class: 1.1D 
GHS Classification
Signal: Danger
Explosive; mass explosion hazard
Toxic if swallowed
Causes eye irritation
Harmful to aquatic life 
explskull;toxic

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-41G19 is for UN 0154; 1GD-I+II for UN 1344 and 3364.
NFPA Code: H3; F4; R4. 
Fireproof. Cool. Substance should be kept wet. Separated from strong oxidants, metals and reducing agents. Store in an area without drain or sewer access. 

IMPORTANT DATA
Physical State; Appearance
YELLOW CRYSTALS. 

Physical dangers
As a result of flow, agitation, etc., electrostatic charges can be generated. Dust explosion possible if in powder or granular form, mixed with air. 

Chemical dangers
May decompose on shock, friction or concussion. May explode on heating. Mixtures with copper, lead, mercury, zinc and other metals are shock-sensitive. On combustion, forms toxic carbon and nitrogen oxides. Reacts with oxidants and reducing agents. 

Occupational exposure limits
TLV: 0.1mg/m³ as TWA; (ACGIH 2008).
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 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
The substance is mildly irritating to the eyes. 

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. Ingestion may cause effects on the gastrointestinal tract, kidneys, liver and blood. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Decomposes at 300°C
Melting point: 122°C
Density: 1.8 g/cm³
Solubility in water, g/100ml: 1.4
Vapour pressure, kPa at 20°C: negligible
Relative vapour density (air = 1): 7.9
Flash point: 150°C c.c.
Auto-ignition temperature: 300°C
Octanol/water partition coefficient as log Pow: 2.03  
The substance is harmful to aquatic organisms. 

NOTES
Do NOT take working clothes home.
Rinse contaminated clothes (fire hazard) with plenty of water.
UN number 0154 refers to picric acid, dry or moistened with less than 30% water by mass.
For safety transportation, 30% water or more is usually added.
Other UN number is 1344, with not less than 30% water by mass, hazard class 4.1, packing group I.
UN 3364 Trinitrophenol(picric acid), wetted with not less than 10% water, by mass; Hazard class: 4.1, Packing Group I
Card has been partially updated in April 2010: see EU Classification. 

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