Trinitrobenzene

  • 1,3,5-Trinitrobenzene
  • 2,4,6-Trinitrobenzene
  • sym-Trinitrobenzene
  • s-Trinitrobenzene
  • TNB
Formula
C6H3N3O6
Structure
Description
A light yellow crystalline sludge or slurry.
Uses
Explosive.

Registry Numbers and Inventories.
CAS
99-35-4
EC (EINECS/ELINCS)
202-752-7
EC Index Number
609-005-00-8
EC Class
Explosive; Very toxic; Danger of cumulative effects; Dangerous for the Environment
RTECS
DC3850000
RTECS class
Mutagen; Primary Irritant
UN (DOT)
1354
Merck
12,9856
Beilstein/Gmelin
1252144
Beilstein Reference
4-05-00-00755
RCRA
U234
Swiss Giftliste 1
G-3021
Canada DSL/NDSL
NDSL
US TSCA
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C6H3N3O6
Formula mass
213.11
Melting point, °C
110
Boiling point, °C
315
Vapor pressure, mmHg
0.0004 (25 C)
Density
1.69 g/cm3
Solubility in water
Slightly soluble
Viscosity
1.576 cp (152 C)
Partition coefficient, pKow
1.10
Heat of vaporization
54.5 kJ/mol
Heat of combustion
-2779 kJ/mol

Hazards and Protection.
Storage
Store only in permanent magazine. This high explosive should be kept well away from initiator explosives; protected from physical damage; separated from oxidizing materials, combustibles and sources of heat.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
For rescue operations, use complete protective clothing. Wear appropriate chemical protective gloves and goggles. Wear appropriate chemical protective gloves, boots and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Keep spilled material wet. Do not attempt to sweep up dry material.
Stability
Tnb is a more powerful explosive than tnt. Explodes on rapid heating. Unstable. Dried out material may explode if exposed to heat, flame, or shock.
Incompatibilities
If mixed with reducing agents, including hydrides, sulfides and nitrides, they may begin a vigorous reaction that culminates in a detonation.
Decomposition
When heated to decomposition, emits highly toxic oxides of nitrogen.

Fire.
Flash Point,°C
164
Fire fighting
Dangerously explosive. Flood with water. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
Fire potential
Flammable/combustible material.
Hazards
May be ignited by heat, sparks or flames. DRIED OUT material may explode if exposed to heat, flame, friction or shock; Treat as an explosive. Keep material wet with water or treat as an explosive. Runoff to sewer may create fire or explosion hazard. MAY EXPLODE AND THROW FRAGMENTS 1600 meters (1 MILE) OR MORE IF FIRE REACHES CARGO.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
2
 
Flammability
4
 
 
Reactivity
4
 

Health.
Poison_Class
1
Exposure effects
Rapid heart rate, rapid breathing, abnormally low blood pressure, and respiratory depression may occur. Headache, dizziness, lethargy, and coma are possible. Nitrobenzene is a possible animal teratogen.
   Ingestion
Nausea and vomiting may occur. Urine and vomitus may have the odor of bitter almonds.
   Inhalation
Respiratory failure may occur.
   Skin
Persistent cyanosis in spite of oxygen therapy usually occurs when the methemoglobin level is greater than 15 percent.
   Eyes
May cause burns. See inhalation.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
   Skin
Remove and isolate contaminated clothing and shoes. Flush with running water for at least 20 minutes.
   Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Transport.
UN number
1354
Response guide
Hazard class
4.1
Packing Group
I
 
USCG CHRIS Code
TNB
 
Std. Transport #
4917140