2-Нитротолуол
- английское имя2-Nitrotoluene
- CAS №88-72-2
- CBNumberCB1854572
- ФормулаC7H7NO2
- мольный вес137.14
- EINECS201-853-3
- номер MDLMFCD00007157
- файл Mol88-72-2.mol
химическое свойство
| Температура плавления | -9 °C |
| Температура кипения | 225 °C(lit.) |
| плотность | 1.163 g/mL at 25 °C(lit.) |
| плотность пара | 4.72 |
| давление пара | 0.1 hPa (20 °C) |
| показатель преломления | n |
| Fp | 223 °F |
| температура хранения | Store below +30°C. |
| растворимость | 0.65g/l (experimental) |
| форма | Liquid |
| цвет | Clear yellow to yellow-green |
| Удельный вес | 1.16 |
| РН | 6-8 (H2O) |
| Пределы взрываемости | 1.47-8.8%(V) |
| Растворимость в воде | 0.44 g/L (20 ºC) |
| Мерк | 14,6650 |
| БРН | 1907580 |
| констант закона Генри | 1.25 at 25 °C (thermodynamic method-GC/UV spectrophotometry, Altschuh et al., 1999) |
| Пределы воздействия | NIOSH REL: TWA 2 ppm (11 mg/m3), IDLH 200 ppm; OSHA PEL: TWA 5 ppm (30 mg/m3); ACGIH TLV: TWA 2 ppm (adopted). |
| Диэлектрическая постоянная | 27.399999999999999 |
| Стабильность | Stable. Combustible. Incompatible with oxidizing agents, strong bases, sulfuric acid, reducing agents, hydrogen, sodium. |
| ИнЧИКей | PLAZTCDQAHEYBI-UHFFFAOYSA-N |
| Справочник по базе данных CAS | 88-72-2(CAS DataBase Reference) |
| Рейтинг продуктов питания EWG | 5 |
| FDA UNII | 6Q9N88YIAY |
| Предложение 65 Список | o-Nitrotoluene |
| Справочник по химии NIST | Benzene, 1-methyl-2-nitro-(88-72-2) |
| МАИР | 2A (Vol. 101) 2013 |
| Система регистрации веществ EPA | o-Nitrotoluene (88-72-2) |
| UNSPSC Code | 12352102 |
| NACRES | NA.22 |
больше
| Коды опасности | T,N,F | |||||||||
| Заявления о рисках | 45-46-22-51/53-62-36/37/38-23/24/25-11-36-20/21/22 | |||||||||
| Заявления о безопасности | 53-45-61-27-16-36/37-26 | |||||||||
| РИДАДР | UN 1664 6.1/PG 2 | |||||||||
| OEB | A | |||||||||
| OEL | TWA: 2 ppm (11 mg/m3) [skin] | |||||||||
| WGK Германия | 3 | |||||||||
| RTECS | XT3150000 | |||||||||
| Температура самовоспламенения | 420 °C | |||||||||
| TSCA | Yes | |||||||||
| Класс опасности | 6.1 | |||||||||
| Группа упаковки | II | |||||||||
| кода HS | 29042000 | |||||||||
| Банк данных об опасных веществах | 88-72-2(Hazardous Substances Data) | |||||||||
| Токсичность | LD50 orally in Rabbit: 891 mg/kg | |||||||||
| ИДЛА | 200 ppm | |||||||||
| NFPA 704: |
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рисовальное письмо(GHS)
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рисовальное письмо(GHS)
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сигнальный язык
опасность
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вредная бумага
H302：Вредно при проглатывании.
H350：Может вызывать раковые заболевания.
H411：Токсично для водных организмов с долгосрочными последствиями.
H361f：Предполагается, что данное вещество может отрицательно повлиять на способность к деторождению.
H340：Может вызывать генетические дефекты.
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оператор предупредительных мер
P202：Перед использованием ознакомиться с инструкциями по технике безопасности.
P264：После работы тщательно вымыть кожу.
P270：При использовании продукции не курить, не пить, не принимать пищу.
P273：Избегать попадания в окружающую среду.
P301+P312：ПРИ ПРОГЛАТЫВАНИИ: Обратиться за медицинской помощью при плохом самочувствии.
P308+P313：ПРИ подозрении на возможность воздействия обратиться за медицинской помощью.
2-Нитротолуол химические свойства, назначение, производство
Описание
2-Nitrotoluene is a light yellow to darker yellow-green liquid. It is used for the synthesis of a variety of industrial products. These include to synthesise agricultural and rubber chemicals, azo and sulphur dyes, and dyes for cotton, wool, silk, leather, and paper. O-nitrotoluene decomposes on contact with strong oxidants, reducing agents, acids, or bases producing toxic fumes, nitrogen oxides, and carbon monoxide.Физические свойства
Clear, colorless to pale yellowish combustible liquid with a faint, aromatic odor. May darken on exposure to air.прикладной
2-Nitrotoluene is a taggant used in explosive compounds and is often used as a simulant for nitro-based high explosives. Its photodissociation leads to the formation of atomic carbon and its emission is observed to overlap with NO emission. The energy transfer from laser-excited nitrogen to NO leads to a long lifetime of NO emission. Argon atoms stabilise the 2-nitrotoluene molecule and delay its photodissociation.[1]Определение
ChEBI: 2-nitrotoluene is a mononitrotoluene that is toluene carrying a nitro substituent at position 2. It has a role as an environmental contaminant and a carcinogenic agent.Подготовка
2-Nitrotoluene was synthesized by nitration of toluene with mixed acid, A mixture of mononitrotoluene isomers can be prepared from the nitration of toluene between -10 oC and 30 oC. Lower temperatures result in little or no reaction, while higher temperatures will result in double nitration forming dinitrotoluenes.Общее описание
Light yellow oily liquid with a characteristic odor of aromatic nitro compounds. Sinks in water. Derived from toluene by nitration and separation by fractional distillation. Flash point 223°F.Реакции воздуха и воды
Insoluble in water.Профиль реактивности
2-Nitrotoluene is toxic by inhalation, ingestion and skin aborption, targeting the blood, central nervous system, skin, and gastrointestinal tract. Symptoms include, anoxia, weakness or dizziness, nausea and vomiting. If 2-Nitrotoluene contacts the eye, the eye should be irrigated immediately. If 2-Nitrotoluene contacts the skin, the area should be washed with soap. If inhaled, respiratory support should be administered. Finally, if ingested, medical attention should be sought. 2-Nitrotoluene also reacts with sulfuric acid, sodium hydroxide, hydrogen, sodium, tetranitromethane, reducing agents and strong oxidizers. 2-Nitrotoluene is very heat sensitive.Опасность
Toxic by inhalation, ingestion, skin absorption. Methemoglobinemia. Probable carcinogen.Угроза здоровью
INHALATION, INGESTION, OR SKIN: Headache, flushing of face, dizziness, dyspnea (difficult breathing), cyanosis, nausea, vomiting, muscular weakness, increased pulse and respiratory rate, irritability, and convulsions. SKIN: Irritation.Профиль безопасности
Confirmed carcinogen. A poison. Moderately toxic by ingestion. Mucous membrane effects by inhalation. Mutation data reported. Combustible when exposed to heat or open flame. To fight fire, use water spray, fog, foam, CO2. Potentially explosive reaction with alkali (e.g., sodmm hydroxide). When heated to decomposition it emits toxic fumes of NOx. See also other methylnitrobenzene entries and NITRO COMPOUNDS OF AROMATIC HYDROCARBONS.Возможный контакт
The nitrotoluenes are used in the production of toluidines and other dye intermediates. All isomers are used in manufacture of agriculture and rubber chemicals and in various dyes.Канцерогенность
o-Nitrotoluene is reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in experimental animals and supporting data on mechanisms of carcinogenesis.Экологическая судьба
Biological. Robertson et al. (1992) reported that toluene dioxygenases from Pseudomonas putida F1 and Pseudomonas sp. Strain JS 150 oxidized the methyl group forming 2-nitrobenzyl alcohol.Перевозки
UN1664 Nitrotoluenes, (o-; m-; p-), Hazard Class: 6.1; Labels: 6.1-Poisonous materials.Методы очистки
Crystallise 2-nitrotoluene (repeatedly) from absolute EtOH by cooling in a Dry-ice/alcohol mixture. Further purify it by passing an alcoholic solution through a column of alumina. [Beilstein 5 IV 845.]Несовместимости
Decomposes on contact with strong oxidizers; strong acids; reducing agents; strong bases; ammonia, amines producing toxic fumes, causing fire and explosion hazard. Heat above 190C may cause explosive decomposition. Attacks some plastics, rubbers, and coatings.Утилизация отходов
Controlled incineration-care must be taken to maintain complete combustion at all times. Incineration of large quantities may require scrubbers to control the emission of nitrogen oxides.2-Нитротолуол запасные части и сырье
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