2,4-Dinitrotoluene

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2,4-Dinitrotoluene

File:2,4-Dinitrotoluol.svg
File:Dinitrotoluene-3D-balls.png
Names
IUPAC name 1-methyl-2,4-dinitro benzene
Identifiers
CAS Number	121-14-2 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:920 Y
ChEMBL	ChEMBL259865 Y
ChemSpider	8150 Y
ECHA InfoCard
KEGG	C11006 Y
PubChem CID	8461
InChI InChI=1S/C7H6N2O4/c1-5-2-3-6(8(10)11)4-7(5)9(12)13/h2-4H,1H3 Y Key: RMBFBMJGBANMMK-UHFFFAOYSA-N Y InChI=1/C7H6N2O4/c1-5-2-3-6(8(10)11)4-7(5)9(12)13/h2-4H,1H3 Key: RMBFBMJGBANMMK-UHFFFAOYAC
SMILES Cc1ccc(cc1[N+](=O)[O-])[N+](=O)[O-]
Properties
Chemical formula	C7H6N2O4
Molar mass	182.134 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is YN ?)
Infobox references

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

2,4-Dinitrotoluene (DNT) or Dinitro is an organic compound with the formula CH₃C₆H₃)(NO₂)₂. This pale yellow crystalline solid is well known as a precursor to trinitrotoluene (TNT) but is mainly produced as a precursor to toluene diisocyanate.

Isomers of dinitrotoluene

Six isomers are possible for dinitrotoluene. The most common one is 2,4-dinitrotoluene.

The nitration of toluene gives sequentially mononitrotoluene, DNT, and finally TNT. 2,4-DNT is the principal product from dinitration, the other main product being about 30% 2,6-DNT. The nitration of 4-nitrotoluene gives 2,4-DNT.

Applications

Most DNT is used in the production of toluene diisocyanate, which is used to produce flexible polyurethane foams. DNT is hydrogenated to produce toluenediamine, which in turn is phosgenated to give toluene diisocyanate. In this way, about 1.4 billion kilograms are produced annually, as of the years 1999-2000. Other uses include the explosives industry. It is not used by itself as an explosive, but some of the production is converted to TNT.

Dinitrotoluene is frequently used as a plasticizer, deterrent coating, and burn rate modifier in propellants (e.g., smokeless gunpowders). As it is carcinogenic and toxic, modern formulations tend to avoid its use. In this application it is often used together with dibutyl phthalate.

Toxicity

Dinitrotoluenes are highly toxic with a TLV of 1.5 mg/m³. It converts hemoglobin into methemoglobin.

2,4 Dinitrotoluene is also a listed hazardous waste under 40 CFR 261.30. Its United States Environmental Protection Agency (EPA) hazardous waste Number is D030. The maximum concentration that may be contained to not have toxic characteristics is 0.13 mg/L.