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NIOSH

PICRIC ACID

ICSC: 0316

2,4,6-Trinitrophenol
Picronitric acid
Phenol trinitrate
2-Hydroxy-1,3,5-trinitrobenzene
Carbazotic acid
Carbonitric acid
Nitrophenesic acid
Nitroxanthic acid
C6H2(NO2)3OH
Molecular mass: 229.1
ICSC # 0316 		CAS # 88-89-1
RTECS # TJ7875000
UN # 0154, see Notes
EC # 609-009-00-X
April 09, 2008 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Explosive. Many reactions may cause fire or explosion. See Notes.
NO open flames, NO sparks, and NO smoking.
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.
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.
Safety goggles.
Rinse with plenty of water (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

STORAGE

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 remove to safe place. Do NOT let this chemical enter the environment.
Fireproof. Cool. Keep wetted. Separated from strong oxidants, metals and reducing substances. Store in an area without drain or sewer access.
Special material.
E symbol
T symbol
R: 2-4-23/24/25
S: 1/2-28-35-37-45
UN Hazard Class: 1.1 D
Signal: Danger
Expl-Skull
Explosive; mass explosion hazard
Toxic if swallowed
Causes eye irritation
Harmful to aquatic life
ICSC: 0316 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

PICRIC ACID

ICSC: 0316

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P

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T

A

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D

A

T

A

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 explosively decompose on shock, friction, or concussion. May explode on heating. Shock-sensitive compounds are formed with metals, particularly copper, lead, mercury and zinc. On combustion, forms toxic carbon and nitrogen oxides. Reacts vigorously with oxidants and reducing materials.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 0.1 mg/m3 as TWA (ACGIH 2008).
MAK: skin absorption (H); sensitization of skin (Sh);
Carcinogen category: 3B
(DFG 2008).
OSHA PEL: TWA 0.1 mg/m3 skin
NIOSH REL: TWA 0.1 mg/m3 ST 0.3 mg/m3 skin
NIOSH IDLH: 75 mg/m3 See: 88891


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. The substance may have effects on the gastrointestinal tract , kidneys , liver and blood when ingested . OSHA 1978 http://www.cdc.gov/niosh/pdfs/0515.pdf 13801

PHYSICAL
PROPERTIES

Decomposes at 300 °C
Melting point: 122°C
Density: 1.8
g/cm3
Solubility in water, g/100 ml: 1.4
negligible
Relative vapour density (air = 1): 7.9
Flashpoint: 150°C c.c.
Auto-ignition temperature: 300°C
Octanol/water partition coefficient as log Pow: 2.03

ENVIRONMENTAL
DATA

The substance is harmful to aquatic organisms.

N O T E S

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 safe transportation, 30% water or more is usually added. ; UN 3364 Trinitrophenol(picric acid), wetted with not less than 10% water, by mass; Hazard class: 4.1, Packing Group I
Transport Emergency Card: TEC (R)-41G19 is for UN 0154
;
Transport Emergency Card: TEC (R)-1GD-I+II is for UN 1344 and 3364

NFPA Code: H3; F4; R4;
Other UN numbers:1344, with not less than 30% water by mass, hazard class 4.1, Packing Group I

ADDITIONAL INFORMATION



ICSC: 0316 PICRIC ACID
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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