Кремний тетрахлорид
- английское имяTetrachlorosilane
- CAS №10026-04-7
- CBNumberCB7412244
- ФормулаCl4Si
- мольный вес169.9
- EINECS233-054-0
- номер MDLMFCD00011229
- файл Mol10026-04-7.mol
химическое свойство
| Температура плавления | −70 °C(lit.) |
| Температура кипения | 57.6 °C(lit.) |
| плотность | 1.483 g/mL at 25 °C(lit.) |
| плотность пара | 5.86 (vs air) |
| давление пара | 420 mm Hg ( 37.7 °C) |
| показатель преломления | 1.413 |
| Fp | 57.6°C |
| температура хранения | Store below +30°C. |
| растворимость | Miscible with benzene, toluene, chloroform, petroleum ether, carbon tetrachloride, ether and hydrochloric acid. |
| форма | Liquid |
| Удельный вес | 1.483 |
| цвет | Colorless |
| РН | 1 (5g/l, H2O) |
| Растворимость в воде | reacts |
| Чувствительный | Moisture Sensitive |
| Гидролитическая чувствительность | 8: reacts rapidly with moisture, water, protic solvents |
| Мерк | 14,8500 |
| Диэлектрическая постоянная | 2.4（16℃） |
| Стабильность | Stability Moisture sensitive - reacts violently with water. Incompatible with water, acids, bases, alcohols, alkali metals, organics, powdered metals. |
| Справочник по базе данных CAS | 10026-04-7(CAS DataBase Reference) |
| Рейтинг продуктов питания EWG | 1 |
| FDA UNII | 96L75U0BM3 |
| Справочник по химии NIST | Silane, tetrachloro-(10026-04-7) |
| Система регистрации веществ EPA | Silane, tetrachloro- (10026-04-7) |
| UNSPSC Code | 12352307 |
| NACRES | NA.23 |
больше
| Коды опасности | C,Xi | |||||||||
| Заявления о рисках | 20/21/22-34-40-36/37/38-14-67-37-35-20/22 | |||||||||
| Заявления о безопасности | 26-7/8-45-36/37/39-28-27 | |||||||||
| РИДАДР | UN 3264 8/PG 2 | |||||||||
| WGK Германия | 1 | |||||||||
| RTECS | VW0525000 | |||||||||
| F | 10-21 | |||||||||
| TSCA | Yes | |||||||||
| кода HS | 2812 19 90 | |||||||||
| Класс опасности | 8 | |||||||||
| Группа упаковки | II | |||||||||
| Банк данных об опасных веществах | 10026-04-7(Hazardous Substances Data) | |||||||||
| NFPA 704: |
|
рисовальное письмо(GHS)
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рисовальное письмо(GHS)
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сигнальный язык
опасность
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вредная бумага
H335：Может вызывать раздражение верхних дыхательных путей.
H314：При попадании на кожу и в глаза вызывает химические ожоги.
H301+H331：Токсично при проглатывании или при вдыхании.
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оператор предупредительных мер
P261：Избегать вдыхания пыли/ дыма/ газа/ тумана/ паров/ аэрозолей.
P270：При использовании продукции не курить, не пить, не принимать пищу.
P280：Использовать перчатки/ средства защиты глаз/ лица.
P303+P361+P353：ПРИ ПОПАДАНИИ НА КОЖУ (или волосы): Снять/удалить немедленно всю загрязненную одежду. Промыть кожу водой.
P304+P340+P310：ПРИ ВДЫХАНИИ: Свежий воздух, покой. Немедленно обратиться за медицинской помощью.
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.
Кремний тетрахлорид химические свойства, назначение, производство
Описание
Chlorosilanes (general formula RnHmSiCl4-n-m, where R is an alkyl, aryl, or olefin group) are compounds in which silicon is bound to between one and four chlorine atoms, bonds with hydrogen and/or organic groups making its total number of bonds up to four. Chlorosilanes react with water, moist air, and steam, producing heat and toxic, corrosive hydrogen chloride fumes. Contact between gaseous hydrogen chloride and metals may release gaseous hydrogen, which is inflammable and explosive. Chlorosilanes react vigorously with oxidizing agents, alcohols, strong acids, strong bases, ketones, and aldehydes.Химические свойства
Clear colorless liquidИспользование
Tetrachlorosilane, can be used as a coupling agent for the synthesis of amine from carboxylic acid and an amide. It can also be used in preparation of high purity silicon, used in photovoltaic cells, and in the semiconductors industry.Методы производства
Manufactured directly by the reaction of chlorine on silicon metal or ferrosilicon at 500C or silicon carbide.Общее описание
Tetrachlorosilane is a colorless, fuming liquid with a pungent odor. Tetrachlorosilane is decomposed by water to hydrochloric acid with evolution of heat. Tetrachlorosilane is corrosive to metals and tissue in the presence of moisture. Tetrachlorosilane is used in smoke screens, to make various silicon containing chemicals, and in chemical analysis.Профиль реактивности
Chlorosilanes, such as Tetrachlorosilane, are compounds in which silicon is bonded to from one to four chlorine atoms with other bonds to hydrogen and/or alkyl groups. Chlorosilanes react with water, moist air, or steam to produce heat and toxic, corrosive fumes of hydrogen chloride. They may also produce flammable gaseous H2. They can serve as chlorination agents. Chlorosilanes react vigorously with both organic and inorganic acids and with bases to generate toxic or flammable gases. Tetrachlorosilane is incompatible with alkali metals and dimethyl sulfoxide.Опасность
Toxic by ingestion and inhalation, strong irritant to tissue.Угроза здоровью
Inhalation causes severe irritation of upper respiratory tract resulting in coughing, choking, and a feeling of suffocation; continued inhalation may produce ulceration of the nose, throat, and larynx; if inhaled deeply, edema of the lungs may occur. Contact of liquid with eyes causes severe irritation and painful burns; may cause permanent visual impairment. Liquid may cause severe burns of skin. Repeated skin contact with dilute solutions or exposure to concentrated vapors may cause dermatitis. Ingestion causes severe internal injury with pain in the throat and stomach, intense thirst, difficulty in swallowing, nausea, vomiting, and diarrhea; in severe cases, collapse and unconsciousness may result.Пожароопасность
Behavior in Fire: Contact with water in foam applied to adjacent fires will produce irritating fumes of hydrogen chloride.Профиль безопасности
Mildly toxic by inhalation. A corrosive irritant to eyes, skin, and mucous membranes. Reacts with water to form HCl. Violent reaction with Na, K. When heated to decomposition it emits toxic fumes of Cl-. See also CHLOROSILANES.Экологическая судьба
Studies of rats subjected to acute inhalation of 10 structurally similar chlorosilanes, including tetrachlorosilane, suggest that the acute toxicity of chlorosilanes is largely due to the hydrogen chloride hydrolysis product. The observed effects were similar to those of HCl inhalation both qualitatively (clinical signs) and quantitatively (molar equivalents of hydrogen chloride at the atmospheric LC50).Методы очистки
Distil it under vacuum and store it in sealed ampoules under N2. It fumes in moist air and is very sensitive to moisture. It is soluble in organic solvents. It is a strong irritant. [Schenk in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I pp 682-683 1963.]Кремний тетрахлорид запасные части и сырье
Кремний тетрахлорид поставщик
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