1-Methyl-2,4-Dinitrobenzene(121-14-2)
Product Identification
Product Name
1-Methyl-2,4-Dinitrobenzene
Synonyms
1-Methyl-2,4-dinitrobenzene
2,4-Dinitrotoluol
CAS
121-14-2
Formula
C7H6N2O4
Molecular Weight
182.15
EINECS
204-450-0
RTECS
XT1575000
RTECS Class
Tumorigen; Mutagen; Reproductive Effector; Primary Irritant
Beilstein/Gmelin
1912834
Beilstein Reference
4-05-00-00865
EC Index Number
609-007-00-9
EC Class
Carcinogenic Category 2; Mutagenic Category 3; Toxic for reproduction Category 3; Toxic; Harmful; Dangerous for the Environment
Physical and Chemical Properties
Appearance
Solidifies if allowed to cool.
Solubility in water
Insoluble
Melting Point
67-70
Boiling Point
300
Vapor Pressure
0.0021 (25 C)
Density
1.379 g/cm3 (20 C)
Partition Coefficient
1.98
Heat Of Vaporization
712 kJ/mol
Heat Of Combustion
-3516 kJ/mol
Usage
Chemical intermediate for toluene-2,4-diamine, a toluenediisocyanate int, gelatinizing & waterproofing agent in explosives, chemical intermediate for dyes (former use).
Vapor Density
6.27
Refractive Index
1.442 (20 C)
First Aid Measures
Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Skin
Get medical aid immediately. 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 immediately.
Handling and Storage
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Hazards Identification
Inhalation
Causes respiratory tract irritation. Methemoglobinemia is characterized by dizziness, drowsiness, headache, breath shortness, cyanosis with bluish skin, rapid heart rate and chocolate-brown blood. This product contains nitrite which may cause methemoglobinemia.
Skin
Causes skin irritation.
Eyes
Causes eye irritation.
Ingestion
Harmful if swallowed. Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May cause allergic reaction. Ingestion of nitrate containing compounds can lead to methemoglobinemia.
Hazards
Decomp is self-sustaining @ 280 deg c. Closed containers may rupture violently when heated.
EC Risk Phrase
R 45 23/24/25 48/22 51/53 62 68
EC Safety Phrase
S 53 45 61
UN (DOT)
2038
Exposure Controls/Personal Protection
Personal 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
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Exposure Effects
There is a danger of cumulative effects.
Exposure limit(s)
TLV: ppm; 1.5 mg/m3 (as TWA) (skin) (ACGIH 1996).
Poison Class
1*
Fire Fighting Measures
Flash Point
147
Autoignition
420
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire, use water fog, dry chemical, carbon dioxide, or regular foam.
Upper exp. limit
8.2
Lower exp. limit
1.4
Fire Potential
Slightly flammable.
Stability and Reactivity
Incompatibilities
Oxidizing agents, reducing agents, strong bases, mixture with nitric acid is highly explosive, ignites on contact with sodium oxide.
Stability
Stable under normal temperatures and pressures. There are instances of explosion during manufacture or storage.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide.
Combustion Products
Nitrogen oxides and dense black smoke are produced in a fire.