ДИХЛОРОТЕТРАФТОРЭТАН
- английское имя1,2-DICHLOROTETRAFLUOROETHANE
- CAS №76-14-2
- CBNumberCB1383302
- ФормулаC2Cl2F4
- мольный вес170.92
- EINECS200-937-7
- номер MDLMFCD00000778
- файл Mol76-14-2.mol
химическое свойство
| Температура плавления | −94 °C(lit.) |
| Температура кипения | 3.8 °C(lit.) |
| плотность | 1,44 g/cm3 |
| плотность пара | 5.93 (vs air) |
| давление пара | 1427 mm Hg ( 20 °C) |
| показатель преломления | nD0 1.3092 |
| форма | Colorless gas |
| Растворимость в воде | 0.13g/L(25 ºC) |
| Мерк | 13,2633 |
| Стабильность | Stable. |
| Справочник по базе данных CAS | 76-14-2(CAS DataBase Reference) |
| FDA 21 CFR | 701.30 |
| Рейтинг продуктов питания EWG | 1 |
| FDA UNII | 6B5VVT93AR |
| Система регистрации веществ EPA | CFC-114 (76-14-2) |
| Коды опасности | N | |||||||||
| Заявления о рисках | 59 | |||||||||
| Заявления о безопасности | 59 | |||||||||
| РИДАДР | UN 1958 2.2 | |||||||||
| OEB | A | |||||||||
| OEL | TWA: 1000 ppm (7000 mg/m3) | |||||||||
| WGK Германия | 1 | |||||||||
| RTECS | KI1101000 | |||||||||
| Класс опасности | 2.2 | |||||||||
| Банк данных об опасных веществах | 76-14-2(Hazardous Substances Data) | |||||||||
| Токсичность | LC inhalation in guinea pig: > 20pph/8H | |||||||||
| ИДЛА | 15,000 ppm | |||||||||
| NFPA 704: |
|
рисовальное письмо(GHS)
-
рисовальное письмо(GHS)
-
сигнальный язык
предупреждение
-
вредная бумага
H280：Газ под давлением. Баллоны (емкости) могут взрываться при нагревании.
H420：Разрушает озоновый слой.
-
оператор предупредительных мер
P410+P403：Беречь от солнечных лучей. Хранить в хорошо вентилируемом месте.
P502：Обратиться к изготовителю или поставщику для получения информации о вторичной переработке или утилизации.
ДИХЛОРОТЕТРАФТОРЭТАН химические свойства, назначение, производство
Химические свойства
colourless gasИспользование
Please view www.aldrich.com/epaods regarding the EPA′s request for application information of Ozone Depleting SubstancesОбщее описание
1,2-DICHLOROTETRAFLUOROETHANE is a colorless, nearly odorless nonflammable gas. 1,2-DICHLOROTETRAFLUOROETHANE may be mildly toxic and irritating by inhalation. 1,2-DICHLOROTETRAFLUOROETHANE can asphyxiate by the displacement of air. Exposure of the container to prolonged heat or fire can cause 1,2-DICHLOROTETRAFLUOROETHANE to rupture violently and rocket. 1,2-DICHLOROTETRAFLUOROETHANE is used as a solvent and as a fire extinguishing agent.Профиль реактивности
1,2-DICHLOROTETRAFLUOROETHANE is chemically inert in many situations, but can react violently with strong reducing agents such as the very active metals and the active metals. Can react with strong oxidizing agents or weaker oxidizing agents under extremes of temperature. The reaction of aluminum with various halogenated hydrocarbons produces a self-sustaining reaction with sufficient heat to melt aluminum pieces, examples of other halogenated hydrocarbons are fluorotrichloromethane, dichlorodifluoromethane, chlorodifluoromethane, tetrafluoromethane. The vigor of the reaction appears to be dependent on the combined degree of fluorination and the vapor pressure, [Chem. Eng. News 39(27):44(1961)].Угроза здоровью
Prolonged exposure can cause narcotic effect or rapid suffocation.Пожароопасность
Some may burn but none ignite readily. Containers may explode when heated. Ruptured cylinders may rocket.Профиль безопасности
An asphyxiant. See also DICHLOROTETRAFLUOROETHANEВозможный контакт
This material is used as a refrigerant and also as a propellant gasКанцерогенность
Dichlorotetrafluoroethane is considered to have little or no mutagenic or carcinogenic potential.The 2003 ACGIH threshold limit value-time-weighted average (TLV-TWA) for dichlorotetrafluoroethane is 1000ppm (6990mg/m3).
Перевозки
UN1958. 1,2-Dichloro-1,1,2,2-tetrafluoroethane or Refrigerant gas R-114, Hazard Class: 2.2; Labels: 2.2- Nonflammable compressed gas. Cylinders must be transported in a secure upright position, in a well-ventilated truck. Protect cylinder and labels from physical damage. The owner of the compressed gas cylinder is the only entity allowed by federal law (49CFR) to transport and refill them. It is a violation of transportation regulations to refill compressed gas cylinders without the express written permission of the ownerНесовместимости
Keep away from welding and hot metals; decomposes, forming hydrogen chloride and hydrogen fluoride. Reacts with acids and acid fumes forming highly toxic chloride gases. Keep away from chemically active metals: sodium, potassium, calcium, powdered aluminum; zinc, and magnesium. Attacks some plastics and coatings.Утилизация отходов
Return refillable compressed gas cylinders to supplier. Incineration after mixing with combustible fuel. Use flue gas scrubber.