3,4-Dinitrotoluene

  • 1-Methyl-3,4-dinitrobenzene
Formula
H3CC6H3(NO2)2
Structure
Description
Yellow needles from carbon disulfide. Slight odor.
Uses
Organic synthesis, toluidines, dyes, explosives. Dinitrotoluene.

Registry Numbers and Inventories.
CAS
610-39-9
EC (EINECS/ELINCS)
210-222-1
EC Index Number
609-051-00-9
EC Class
Carcinogenic Category 2; Mutagenic Category 3; Toxic for reproduction Category 3; Toxic; Harmful; Dangerous for the Environment
RTECS
XT2100000
RTECS class
Mutagen; Primary Irritant
UN (DOT)
2038
Beilstein/Gmelin
2213431
Beilstein Reference
4-05-00866
Canada DSL/NDSL
NDSL
US TSCA
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C7H6N2O4
Formula mass
182.14
Melting point, °C
61
Boiling point, °C
351
Decomposition point, °C
250-300
Vapor pressure, mmHg
9E-5 (25 C)
Vapor density (air=1)
6.28
Density
1.2594 g/cm3 (111 C)
Solubility in water
Insoluble
Partition coefficient, pKow
2.30
Heat of vaporization
57.2 kJ/mol
Heat of combustion
-3417 kJ/mol

Hazards and Protection.
Storage
Unspecified dinitrotoluene solid--separate from strong oxidizers and from reducing agents, protect from damage to container.
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
Wear appropriate clothing to prevent any possibility or probability of skin contact with molten liquids or repeated or prolonged contact with solutions. Wear eye protection to prevent any possibility of eye contact with molten material. Dispensers of liquid detergent should be available. In the laboratory, gloves and protective clothing should always be worn but should not be assumed to provide full protection.
Respirators
Any self contained breathing apparatus with a full facepiece and operated in a pressure demand or other positive pressure mode or any supplied air respirator with a full facepiece and operated in a pressure demand or other positive pressure mode in combination with an auxiliary self contained breathing apparatus operated in pressure demand or other positive pressure mode.
Small spills/leaks
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
Dinitrotoluenes may explode if confined while burning. Dinitrotoluene can be detonated only by a very strong initiator. It may be an explosion hazard when involved in a fire. Moderate explosion hazard. May explode from heat or contamination if confined.
Incompatibilities
Avoid contact with strong oxidizers, caustics, metals such as tin and zinc
Decomposition
When heated to decomposition it emits toxic fumes of nitrogen oxides.

Fire.
Flash Point,°C
207
Upper exp. limit, %
8.2
Lower exp. limit, %
1.4
Fire fighting
Fire Extinguishing Agents: Water, CO 2 , dry chemical
Fire potential
Dinitrotoluenes may burn but do not ignite readily. Combustible: moderate fire hazard.
Hazards
Containers may explode when heated.
Combustion products
Emits toxic fumes of oxides of nitrogen.

Health.
Exposure limit(s)
TLV: ppm; 0.15 mg/m3 (as TWA) (skin) (ACGIH 1996).
Exposure effects
Respiratory depression secondary to hypoxia may occur. CNS depression is secondary to hypoxia from methemoglobinemia. DNT was NOT teratogenic in rats, and had no effects in a 3- generation study in rats. Testicular effects have been seen in laboratory animals, but not in exposed workers.
   Ingestion
Nausea and vomiting may be secondary to methemoglobinemia.
   Inhalation
Acute effects - blue lips, fingernails and skin. Headache, dizziness, nausea, confusion, convulsions and unconsciousness. Irritates the eyes and skin. May cause effects on the central nervous and cardiovascular system and the blood, resulting in methemoglobin. Effects may be delayed.<BR>Chronic effects - May cause effects on the central nervous and cardiovascular system and the blood, resulting in methemoglobin.
   Skin
Redness. See inhalation. May be absorbed through the skin.
   Eyes
Headache can occur. Redness.

First aid
 
   Ingestion
Do not induce vomiting - following ingestion and/or prior to gastric evacuation, immediately dilute with 4 to 8 ounces (120 to 240 ml) of milk or water (not to exceed 15 ml/kg in a child).
   Inhalation
Remove from exposure. If cyanotic, oxygen can be administered.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists. Administer oxygen to all cyanotic patients.
   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. Treatment should include recommendations listed in the oral exposure section when appropriate.

Transport.
UN number
2038
Response guide
Hazard class
6.1
Packing Group
II
 
USCG CHRIS Code
DNU
 
42 Nitrocompounds
IMO Chemical Code
17
IMO Pollution Category
A
IMO Hazard code
S/P