БРОМХЛОРМЕТАН
- английское имяBromochloromethane
- CAS №74-97-5
- CBNumberCB7402908
- ФормулаCH2BrCl
- мольный вес129.38
- EINECS200-826-3
- номер MDLMFCD00000880
- файл Mol74-97-5.mol
химическое свойство
| Температура плавления | −88 °C(lit.) |
| Температура кипения | 68 °C(lit.) |
| плотность | 1.991 g/mL at 25 °C(lit.) |
| плотность пара | 4.5 (vs air) |
| давление пара | 117 mm Hg ( 20 °C) |
| показатель преломления | n |
| Fp | 11 °C |
| температура хранения | 2-8°C |
| растворимость | Soluble in acetone, alcohol, benzene, ether (Weast, 1986), and many other solvents, particularly chlorinated hydrocarbons. |
| Удельный вес | 1.991 |
| Растворимость в воде | 9 g/L (20 ºC) |
| БРН | 1730801 |
| констант закона Генри | (x 10-3 atm?m3/mol): 1.44 at 25 °C (approximate - calculated from water solubility and vapor pressure) |
| Пределы воздействия | NIOSH REL: TWA 200 ppm (1,050 mg/m3), IDLH 2,000 ppm; OSHA PEL: TWA 200 ppm; ACGIH TLV: TWA 200 ppm (adopted) |
| Диэлектрическая постоянная | 7.8（Ambient） |
| Стабильность | Stable, but may discolour in light. Incompatible with aluminium, magnesium, zinc, calcium, strong oxidizing agents. |
| LogP | 1.410 |
| Справочник по базе данных CAS | 74-97-5(CAS DataBase Reference) |
| FDA UNII | 45WX84110G |
| Справочник по химии NIST | Methane, bromochloro-(74-97-5) |
| Система регистрации веществ EPA | Halon 1011 (74-97-5) |
| UNSPSC Code | 12000000 |
больше
| Коды опасности | Xi,N,Xn,T,F | |||||||||
| Заявления о рисках | 37/38-41-59-36/37/38-20-39/23/24/25-23/24/25-11-36/38 | |||||||||
| Заявления о безопасности | 26-39-59-37/39-45-36/37-16-7 | |||||||||
| РИДАДР | UN 1887 6.1/PG 3 | |||||||||
| OEB | A | |||||||||
| OEL | TWA: 200 ppm (1050 mg/m3) | |||||||||
| WGK Германия | 2 | |||||||||
| RTECS | PA5250000 | |||||||||
| Примечание об опасности | Irritant | |||||||||
| Класс опасности | 6.1(b) | |||||||||
| Группа упаковки | III | |||||||||
| кода HS | 29034980 | |||||||||
| Банк данных об опасных веществах | 74-97-5(Hazardous Substances Data) | |||||||||
| Токсичность | LC50 (inhalation) for mice 15,850 mg/m3/8-h, rats 28,800 ppm/15-min (quoted, RTECS, 1985). Acute oral LD50 for rats 5,000 mg/kg, mice 4,300 mg/kg (quoted, RTECS, 1985). | |||||||||
| ИДЛА | 2,000 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
H315：При попадании на кожу вызывает раздражение.
H335：Может вызывать раздражение верхних дыхательных путей.
H318：При попадании в глаза вызывает необратимые последствия.
H332：Вредно при вдыхании.
H420：Разрушает озоновый слой.
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оператор предупредительных мер
P261：Избегать вдыхания пыли/ дыма/ газа/ тумана/ паров/ аэрозолей.
P280：Использовать перчатки/ средства защиты глаз/ лица.
P305+P351+P338：ПРИ ПОПАДАНИИ В ГЛАЗА: Осторожно промыть глаза водой в течение нескольких минут. Снять контактные линзы, если Вы ими пользуетесь и если это легко сделать. Продолжить промывание глаз.
БРОМХЛОРМЕТАН химические свойства, назначение, производство
Химические свойства
white to light yellow crystal powderФизические свойства
Clear, colorless liquid with a sweet, chloroform-like odorИспользование
Bromochloromethane is used primarily as an extinguishing agent due to its oxygen-depleting properties.Определение
ChEBI: A one-carbon compound substituted by a chloro and a bromo group.Общее описание
A clear colorless liquid with a sweet chloroform-like odor. Denser than water (density 1.991 g / cm3) and insoluble in water. Hence sinks in water. Boiling point 68°C. Vapors may cause illness if inhaled. Nonflammable. When exposed to high temperatures may emit toxic fumes. Used as a fire extinguishing agent.Реакции воздуха и воды
Insoluble in water.Профиль реактивности
Bromochloromethane is sensitive to light (may discolor). Incompatible with strong bases and strong oxidizing agents. Also incompatible with active metals, calcium, aluminum, magnesium, zinc and their alloys. Attacks some forms of plastics, rubber and coatings. .Опасность
By inhalation.Угроза здоровью
Toxic by ingestion. Vapors may cause dizziness or suffocation. Exposure in an enclosed area may be very harmful. Contact may irritate or burn skin and eyes. Fire may produce irritating and/or toxic gases. Runoff from fire control or dilution water may cause pollution.Пожароопасность
Some of these materials may burn, but none ignite readily. Most vapors are heavier than air. Air/vapor mixtures may explode when ignited. Container may explode in heat of fire.Профиль безопасности
Mildly toxic by ingestion and inhalation. Mutation data reported. This material has a narcotic action of moderate intensity, although of prolonged duration. Animals exposed for several weeks to 1000 pprn had blood bromide levels as high as 350 mgl100 g. Therefore, until further data are available, it should be considered at least as toxic as carbon tetrachloride and more than minimal exposure to its vapors should be avoided. Dangerous; when heated to decomposition it emits highly toxic fumes of Brand Cl-. See also BROMIDES and CHLORINATED HYDROCARBONS, ALIPHATIC.Возможный контакт
This compound is used in brominated flame retardants; a fire-extinguishing agent; and in organic synthesisКанцерогенность
The U.S. EPA classification is D (not classifiable as to human carcinogenicity). Bromochloromethane is structurally similar to dichloromethane (methylene chloride), which is classified B2 (probable human carcinogen). The classification is based on the lack of data regarding the carcinogenicity of bromochloromethane in humans or animals; however, there are data indicative of genotoxic effects and structural relationships to halogenated methanes classified as B2 (probable human carcinogens).Экологическая судьба
Biological. When bromochloromethane (5 and 10 mg/L) was statically incubated in the dark at 25 °C with yeast extract and settled domestic wastewater inoculum for 7 d, 100% biodegradation with rapid adaptation was observed (Tabak et al., 1981).Photolytic. The following rate constants were reported for the reaction of bromochloromethane and OH radicals as measured by both flash photolysis resonance fluorescence and discharge flow electron paramagnetic resonance techniques (x 10-13 cm3/molecule?sec): 0.91 at 4 °C, 1.11–1.13 at 25 °C, 1.32–1.34 at 40 °C, 1.55–1.58 at 57 °C, 1.76–1.90 at 76 °C, 2.10–2.26 at 97 °C (Orkin et al., 1997).
Chemical/Physical. Although no products were identified, the estimated hydrolysis half-life in water at 25 °C and pH 7 is 44 yr (Mabey and Mill, 1978). Bromochloromethane reacts with bisulfide ion (HS-), produced by microbial reduction of sulfate, forming 1,3,5-trithiane and dithiomethane. Estimated reaction rate constants at 25 and 35 °C were 7.29 x 10-5 and 2.42 x 10- 4/M?sec, respectively (Roberts et al., 1992).
Перевозки
UN1887 Bromochloromethane, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.Несовместимости
Incompatible with strong oxidizers (possible explosion), reducing agents, bases, carbonates, furyl alcohol, chemically active metals, such as calcium; base metals in the presence of moisture, powdered aluminum; zinc, magnesium. Liquid attacks some plastics, rubber, and coatings.Утилизация отходов
Incinerate together with flammable solvent in furnace equipped with afterburner and alkali scrubber.БРОМХЛОРМЕТАН запасные части и сырье
БРОМХЛОРМЕТАН поставщик
| поставщик | телефон | страна | номенклатура продукции | благоприятные условия |
|---|---|---|---|---|
| 13720181483 13720181483 |
China | 5069 | 58 |