2,4-디니트로톨루엔

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Danger

• 유해·위험 문구

  H341：유전적인 결함을 일으킬 것으로 의심됨 (노출되어도 생식세포 유전독성을 일으키지 않는다는 결정적인 증거가 있는 노출경로가 있다면 노출경로 기재)

  H350：암을 일으킬 수 있음 (노출되어도 암을 일으키지 않는다는 결정적인 증거가 있는 노출경로가 있다면 노출경로 기재)

  H373：장기간 또는 반복 노출되면 장기(또는, 영향을 받은 알려진 모든 장기를 명시)에 손상을 일으킬 수 있음

  H410：장기적 영향에 의해 수생생물에 매우 유독함

• 예방조치문구

  P201：사용 전 취급 설명서를 확보하시오.

  P273：환경으로 배출하지 마시오.

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

2,4-디니트로톨루엔 MSDS

• 1-Methyl-2,4-Dinitrobenzene

2,4-디니트로톨루엔 화학적 특성, 용도, 생산

• 개요

  2,4-Dinitrotoluene is the most common of the six dinitrotoluene isomers. Dinitrotoluene (DNT) or Dinitro is an explosive with the formula C6H3(CH3)(NO2)2. At room temperature it is a pale yellow to orange crystalline solid. It is a high explosive and one of the precursors for trinitrotoluene (TNT), which is synthesized through three separate nitrations of toluene. The first product is mononitrotoluene, DNT is the second, and TNT is the third and final product. Dinitrotoluene induced sensitization in an employee of a manufacturers of explosives, also sensitized to nitroglycerin.

• 화학적 성질

  2,4-Dinitrotoluene (DNT) or dinitro is an organic compound with the formula C7H6N2O4. This pale yellow crystalline solid is well known as a precursor to trinitrotoluene (TNT) but is mainly produced as a precursor to toluene diisocyanate.

• 물리적 성질

  Both 2,4-Dinitrotoulene (2,4-DNT) and 2,6-Dinitrotoluene (2,6-DNT) are man-made solids that are pale yellow and have a slight odor. They are two of the six forms of a chemical called Dinitrotoluene (DNT). DNT is made by mixing toluene with nitric acid.

• 용도

  2,4-Dinitrotoluene is used largely, along with the 2,6-isomer, to make toluene diisocyanate. The DNT mixture is hydrogenated to yield the diamine that is reacted with phosgene to form the diisocyanate that is reacted with polyols to make polyurethane foams. DNT is also employed to some extent in manufacturing explosives.

• 정의

  ChEBI: 2,4-dinitrotoluene is a dinitrotoluene in which the methyl group is ortho to one of the nitro groups and para to the other. It is the most common isomer of dinitrotoluene.

• 생산 방법

  4-Nitrotoluene is nitrated with mixed acid (containing equimolar HNO3) under controlled conditions and continuous operation to give a 96 % yield of 2,4-dinitrotoluene. In Meissner units, for tighter control of the whole process, cocurrent flow is used in each step to separate mono- and dinitration, but countercurrent flow is used between them to prevent underor overnitration; this is also done in one-step nitration plants. After nitration, if separation of the resulting emulsion is difficult, the introduction of pure product can give surprisingly rapid separation.
  Alternative processes yield mixed isomer products. When toluene is nitrated directly under similar conditions with 2.1 equivalents of nitric acid, the product is a ca. 80 : 20 mixture of 2,4-dinitrotoluene and 2,6-dinitrotoluene [606-20-2]. Nitration of 2-nitrotoluene, which is sometimes present in surplus, gives a ca. 67 : 33 mixture of 2,4- and 2,6-dinitrotoluene. 

• 일반 설명

  Heated yellow liquid. Solidifies if allowed to cool. Insoluble in water and more dense than water. Toxic by skin absorption, inhalation and ingestion. Easily absorbed through the skin. Produces toxic oxides of nitrogen during combustion. Used to make dyes and other chemicals.

• 공기와 물의 반응

  Insoluble in water.

• 반응 프로필

  DINITROTOLUENE is incompatible with strong oxidizing agents, caustics, active metals, tin and zinc . Decomposition occurs at 250°C. Prolonged heating below 250°C causes some decomposition, and the presence of impurities may decrease the decomposition temperatures. Decomposition is self-sustaining at 280°C. Containers may explode in a fire [USCG, 1999]. May react violently in the presence of a base or when heated to the boiling point. Attacks some forms of plastics, rubbers and coatings .

• 건강위험

  Ingestion or overexposure to vapors from hot liquid can cause loss of color, nausea, headache, dizziness, drowsiness, collapse. Hot liquid can burn eyes and skin. Prolonged skin contact with solid can give same symptoms as after inhalation or ingestion.

• Safety Profile

  2,4-Dintirotoluene is used as an intermediate in the manufacture of polyurethanes. No information is available on the acute (short-term) effects of 2,4-dinitrotoluene in humans. Chronic (long-term) inhalation exposure to 2,4-dinitrotoluene affects the central nervous system (CNS) and blood in humans. A significant reduction in sperm count and normal sperm morphology was observed in one study of chronically exposed workers, while other studies have not reported this effect. No significant increase in cancer mortality was observed in a study of workers occupationally exposed to 2,4-dinitrotoluene by inhalation. Kidney, liver, and mammary gland tumors were observed in animals orally exposed to 2,4- dinitrotoluene. EPA has not classified 2,4-dinitrotoluene for potential carcinogenicity.

• 환경귀착

  Biological. When 2,4-dinitrotoluene was statically incubated in the dark at 25 °C with yeast extract and settled domestic wastewater inoculum, significant biodegradation with gradual acclimation was followed by deadaptive process in subsequent subcultures. At a concentration of 5 mg/L, 77, 61, 50, and 27% losses were observed after 7, 14, 21, and 28-d incubation periods, respectively. At a concentration of 10 mg/L, only 50, 49, 44, and 23% were observed after 7, 14, 21, and 28-d incubation periods, respectively (Tabak et al., 1981).
  Photolytic. Low et al. (1991) reported that nitro-containing compounds (e.g., 2,4-dinitrophenol) degrade via UV light in the presence of titanium dioxide yielding ammonium, carbonate, and nitrate ions. By analogy, 2,4-dinitrotoluene should degrade forming identical ions.
  Chemical/Physical. Wet oxidation of 2,4-dinitrotoluene at 320 °C yielded formic and acetic acids (Randall and Knopp, 1980).

• 신진 대사 경로

  The major biliary metabolite of 2,4-dinitrotoluene (2,4- DNT) in the rat is the glucuronide conjugate of 2,4- dinitrobenzyl alcohol and the minor metabolites are 2,4-dinitrobenzyl alcohol, 2,4-dinitrobenzaldehyde, 2- acetylamino-4-nitrotoluene, 4-amino-2-nitro or 2- amino-4-nitrobenzyl alcohol sulfate, 2,4-dinitrobenzoic acid, 2,4-diacetylaminobenzoic acid, and 2-amino-4- nitrobenzoic acid.

• Purification Methods

  Crystallise it from Me2CO, isopropanol or MeOH. Dry it in a vacuum over H2SO4. It has also been purified by zone melting. It could be EXPLOSIVE when dry.[Beilstein 5 H339, 5 IV 865, 5 III 759.]

2,4-디니트로톨루엔 준비 용품 및 원자재

2,4-디니트로톨루엔 관련 검색