ИЗОПРОПИЛАЦЕТАТ
- английское имяIsopropyl acetate
- CAS №108-21-4
- CBNumberCB6852740
- ФормулаC5H10O2
- мольный вес102.13
- EINECS203-561-1
- номер MDLMFCD00008877
- файл Mol108-21-4.mol
химическое свойство
| Температура плавления | -73 °C |
| Температура кипения | 88.8 °C |
| плотность | 0.872 g/mL at 25 °C(lit.) |
| плотность пара | 3.5 (vs air) |
| давление пара | 47 mm Hg ( 20 °C) |
| показатель преломления | n |
| FEMA | 2926 | ISOPROPYL ACETATE |
| Fp | 62 °F |
| температура хранения | Store below +30°C. |
| растворимость | 1 M HCl: soluble50mg/mL, clear to slightly hazy, colorless |
| форма | Liquid |
| цвет | Clear colorless |
| Запах | Pleasant, fruity; nonresidual. |
| Порог?обнаружения?запаха? | 0.16ppm |
| Пределы взрываемости | 1.8%, 37°F |
| Odor Type | ethereal |
| Биологические источники | synthetic |
| Скорость испарения | 3 |
| Растворимость в воде | 2.90 g/100 mL |
| Точка замерзания | -73.4℃ |
| Чувствительный | Moisture Sensitive |
| Номер JECFA | 305 |
| Мерк | 14,5205 |
| БРН | 1740761 |
| Пределы воздействия | TLV-TWA 250 ppm (～950 mg/m3) (ACGIH, MSHA, and OSHA); TLV-STEL 310 ppm (～1185 mg/m3) (ACGIH); IDLH 16,000 ppm (NIOSH). |
| Стабильность | Stable. Flammable - note low flash point. Incompatible with strong oxidizing agents, strong acids, nitrates, alkali metals. May attack some plastics and rubber. |
| LogP | 1.03-1.18 at 20℃ |
| Вещества, добавляемые в пищу (ранее EAFUS) | ISOPROPYL ACETATE |
| FDA 21 CFR | 172.515; 175.105; 177.1200 |
| Справочник по базе данных CAS | 108-21-4(CAS DataBase Reference) |
| Рейтинг продуктов питания EWG | 1 |
| FDA UNII | 1Y67AFK870 |
| Справочник по химии NIST | Acetic acid, 1-methylethyl ester(108-21-4) |
| Система регистрации веществ EPA | Isopropyl acetate (108-21-4) |
| UNSPSC Code | 85151701 |
| NACRES | NA.24 |
больше
| Коды опасности | F,Xi | |||||||||
| Заявления о рисках | 11-36/37/38-67-66-36 | |||||||||
| Заявления о безопасности | 16-26-36-33-29 | |||||||||
| РИДАДР | UN 1220 3/PG 2 | |||||||||
| WGK Германия | 1 | |||||||||
| RTECS | AI4930000 | |||||||||
| Температура самовоспламенения | 894 °F | |||||||||
| TSCA | Yes | |||||||||
| Класс опасности | 3 | |||||||||
| Группа упаковки | II | |||||||||
| кода HS | 29153900 | |||||||||
| Банк данных об опасных веществах | 108-21-4(Hazardous Substances Data) | |||||||||
| Токсичность | LD50 orally in rats: 6.75 g/kg (Smyth) | |||||||||
| ИДЛА | 1,800 ppm | |||||||||
| 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
H319：При попадании в глаза вызывает выраженное раздражение.
H225：Легковоспламеняющаяся жидкость. Пары образуют с воздухом взрывоопасные смеси.
H336：Может вызывать сонливость или головокружение.
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оператор предупредительных мер
P210：Беречь от тепла, горячих поверхностей, искр, открытого огня и других источников воспламенения. Не курить.
P233：Держать в плотно закрытой/герметичной таре.
P261：Избегать вдыхания пыли/ дыма/ газа/ тумана/ паров/ аэрозолей.
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.
P370+P378：При пожаре тушить сухим песком, сухим химическим порошком или спиртостойкой пеной.
ИЗОПРОПИЛАЦЕТАТ химические свойства, назначение, производство
Химические свойства
Isopropyl acetate is a colourless liquid with an intense, fruity odor. On dilution, it has a sweet apple-like flavor. Miscible with most organic solvents such as alcohols, ketones and ethers. 2.9% (w/w) soluble in water at 20°C. Synthesized by direct acetylation of isopropyl alcohol in the presence of various catalysts: concentrated H2S04, diethyl sulfate, chlorosulfonic acid, and boron trifluoride.Физические свойства
Clear, colorless liquid with an aromatic odor. Experimentally determined detection and recognition odor threshold concentrations were 2.1 mg/m3 (500 ppbv) and 3.8 mg/m3 (910 ppbv), respectively (Hellman and Small, 1974).Вхождение
Reported found in pineapple, pear, cocoa, apple, banana, black currants, grapes, melons, strawberry, cheddar cheese, beer, white wine, red wine, cocoa, honey, soybean, yellow passion fruit, beans, plum brandy and nectarinesИспользование
Isopropyl acetate is used as a solvent for nitrocellulose, plastics, oils, and fats, and as a flavoring agent. Isopropyl Acetate is a widely used chemical solvent in organic and industrial syntheses. Also used in the dissolution of gallstones. Environmental contaminants; Food contaminants.прикладной
Isopropyl acetate is a solvent in chemical industry, especially for cellulose, plastics, waxes, resins, gums, paints, oil and fats. and also as flavoring agent. It is an active component of perfumes and printing inks. It is also employed as an extractant for the preparation of antibiotics, vitamins and hormones.Определение
ChEBI: Isopropyl acetate is a branched-chain saturated fatty acid anion that is the conjugate base of isovaleric acid; reported to improve ruminal fermentation and feed digestion in cattle.Подготовка
Isopropyl acetate is prepared from propylene and anhydrous acetic acid in the presence of a catalyst . It may also be produced by direct acetylation of isopropyl alcohol in the presence of various catalysts; concentrated H2SO4, diethyl sulfate, chlorosulfonic acid and boron trifluoride.Общее описание
Isopropyl acetate appears as a clear colorless liquid. Flash point 40°F. Vapors are heavier than air. Contact with the material may irritate skin, eyes or mucous membranes. May be toxic by ingestion, inhalation and skin absorption. Used as a solvent.Реакции воздуха и воды
Highly flammable. Less dense than water and slightly soluble in water.Профиль реактивности
Isopropyl acetate is an ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides. Isopropyl acetate can react vigorously with nitrates, strong oxidizers, strong alkalis and strong acids. Isopropyl acetate may also attack some forms of rubber, plastics and coatings. .Угроза здоровью
Isopropyl acetate is an irritant to the eyes,nose, and throat. Liquid irritates eyes but causes no serious injury; may cause dermatitis; no serious effects if swallowed. The acute toxicity in laboratory animals was low. Exposure to highconcentrations in air or ingestion can produce narcotic effects. A 4-hour exposure to aconcentration of 32,000 ppm in air was fatalto rats (ACGIH 1986). The oral LD50 valuein rats is in the range 6000 mg/kg.Пожароопасность
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.Экологическая судьба
Chemical/Physical. Hydrolyzes in water forming isopropyl alcohol and acetic acid (Morrison and Boyd, 1971). The estimated hydrolysis half-life at 25 °C and pH 7 is 8.4 yr (Mabey and Mill, 1978).At an influent concentration of 1,000 mg/L, treatment with GAC resulted in an effluent concentration of 319 mg/L. The adsorbability of the carbon used was 137 mg/g carbon (Guisti et al., 1974).
Методы очистки
Wash the acetate with 50% aqueous K2CO3 (to remove acid), then with saturated aqueous CaCl2 (to remove any alcohol). Dry it with CaCl2 and fractionally distil it. [Beilstein 2 IV 141.]ИЗОПРОПИЛАЦЕТАТ запасные части и сырье
сырьё
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