2,5-DNT

  • 2,5-Dinitrotoluene
  • 3-Methyl-1,4-dinitrobenzene
  • 2-Methyl-1,4-dinitrobenzene
  • 1-Methyl-2,5-dinitrobenzene
Formula
C7H6N2O4
Structure
Description
Needles from alcohol.
Uses
Organic synthesis, toluidines, dyes, explosives. Dinitrotoluene.

Registry Numbers and Inventories.
CAS
619-15-8
EC (EINECS/ELINCS)
210-581-4
EC Index Number
609-055-00-0
EC Class
Carcinogenic Category 2; Mutagenic Category 3; Toxic for reproduction Category 3; Toxic; Harmful; Dangerous for the Environment
RTECS
XT1750000
RTECS class
Mutagen; Primary Irritant
UN (DOT)
2038
Beilstein/Gmelin
2213718
Beilstein Reference
4-05-00-00866
Canada DSL/NDSL
NDSL
US TSCA
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C7H6N2O4
Formula mass
182.15
Melting point, °C
52.5
Vapor pressure, mmHg
0.045004 (72 C)
Density
1.282 g/cm3 (111 C)
Solubility in water
Insoluble
Partition coefficient, pKow
2.20
Heat of vaporization
75.30 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Metals, strong oxidizing agents, caustics.
Decomposition
Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
185
Upper exp. limit, %
8.2
Lower exp. limit, %
1.5
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water with caution and in flooding amounts. Containers may explode when heated. Combustible material; may burn but does not ignite readily. Extinguishing media: Do NOT get water inside containers. For small fires, use dry chemical, carbon dioxide, or water spray. For large fires, use water spray, fog or regular foam. Cool containers with flooding quantities of water until well after fire is out.
Fire potential
Dinitrotoluenes may burn but do not ignite readily. Combustible: moderate fire hazard.
Hazards
Containers may explode when heated.
Combustion products
When heated to decomposition it emits toxic fumes of nitrogen oxides.
Health
2
 
Flammability
1
 
 
Reactivity
0
 

Health.
Exposure effects
May cause methemoglobinemia, which is characterized by chocolate-brown colored blood, headache, weakness, dizziness, breath shortness, cyanosis, rapid heart rate, unconsciousness and possible death.
   Ingestion
May cause irritation of the digestive tract. Methemoglobinemia is characterized by dizziness, drowsiness, headache, breath shortness, cyanosis with bluish skin, rapid heart rate and chocolate-brown colored blood. May be harmful if swallowed. May form methemoglobin which in sufficient concentration causes cyanosis.
   Inhalation
May cause respiratory tract irritation. May cause methemoglobinemia, cyanosis, convulsions, tachycardia, dyspnea, and death. Methemoglobinemia is characterized by dizziness, drowsiness, headache, breath shortness, cyanosis with bluish skin, rapid heart rate and chocolate-brown blood.
   Skin
May cause skin irritation. Absorption into the body may cause cyanosis.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
2038
Response guide
Hazard class
6.1
Packing Group
II