Изобутилацета
- английское имяIsobutyl acetate
- CAS №110-19-0
- CBNumberCB8852805
- ФормулаC6H12O2
- мольный вес116.16
- EINECS203-745-1
- номер MDLMFCD00008932
- файл Mol110-19-0.mol
химическое свойство
| Температура плавления | -99 °C (lit.) |
| Температура кипения | 115-117 °C (lit.) |
| плотность | 0.867 g/mL at 25 °C (lit.) |
| плотность пара | >4 (vs air) |
| давление пара | 15 mm Hg ( 20 °C) |
| FEMA | 2175 | ISOBUTYL ACETATE |
| показатель преломления | n |
| Fp | 71 °F |
| температура хранения | Store below +30°C. |
| растворимость | water: soluble5.6g/L at 20°C |
| форма | Liquid |
| цвет | Clear |
| РН | 5 (4g/l, H2O, 20℃) |
| Запах | Agreeable fruity odor in low concentrations, disagreeable in higher concentrations; mild, characteristic ester; nonresidual. |
| Водородный показатель | 7 |
| Скорость испарения | 1.5 |
| Относительная плотность газов（воздух=1） | 4.01 |
| Odor Type | fruity |
| Вязкость | 0.8mm2/s |
| Порог?обнаружения?запаха? | 0.008ppm |
| Пределы взрываемости | 2.4-10.5%(V) |
| Растворимость в воде | 7 g/L (20 ºC) |
| Мерк | 14,5130 |
| Номер JECFA | 137 |
| БРН | 1741909 |
| констант закона Генри | (x 10-4 atm?m3/mol): 4.85 at 25 °C (approximate - calculated from water solubility and vapor pressure) |
| Пределы воздействия | TLV-TWA 150 ppm (～700 mg/m3) (ACGIH, MSHA, and OSHA); IDLH 7500 ppm (NIOSH). |
| Диэлектрическая постоянная | 5.6（20℃） |
| LogP | 2.3 at 25℃ |
| Вещества, добавляемые в пищу (ранее EAFUS) | ISOBUTYL ACETATE |
| FDA 21 CFR | 172.515 |
| Справочник по базе данных CAS | 110-19-0(CAS DataBase Reference) |
| Рейтинг продуктов питания EWG | 1 |
| FDA UNII | 7CR47FO6LF |
| Справочник по химии NIST | Isobutyl acetate(110-19-0) |
| Система регистрации веществ EPA | Isobutyl acetate (110-19-0) |
больше
| Коды опасности | F | |||||||||
| Заявления о рисках | 11-66 | |||||||||
| Заявления о безопасности | 16-23-25-29-33 | |||||||||
| РИДАДР | UN 1213 3/PG 2 | |||||||||
| OEB | A | |||||||||
| OEL | TWA: 150 ppm (700 mg/m3) | |||||||||
| WGK Германия | 1 | |||||||||
| RTECS | AI4025000 | |||||||||
| Температура самовоспламенения | 793 °F | |||||||||
| TSCA | Yes | |||||||||
| кода HS | 2915 39 00 | |||||||||
| Класс опасности | 3 | |||||||||
| Группа упаковки | II | |||||||||
| Банк данных об опасных веществах | 110-19-0(Hazardous Substances Data) | |||||||||
| Токсичность | LD50 orally in Rabbit: 13400 mg/kg LD50 dermal Rabbit > 17400 mg/kg | |||||||||
| ИДЛА | 1,300 ppm [10% LEL] | |||||||||
| 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
H225：Легковоспламеняющаяся жидкость. Пары образуют с воздухом взрывоопасные смеси.
H336：Может вызывать сонливость или головокружение.
-
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.
P240：Заземлить и электрически соединить контейнер и приемное оборудование.
P241：Использовать взрывобезопасное оборудование и освещение.
P242：Использовать неискрящие приборы.
P243：Принимать меры предосторожности против статических разрядов.
Изобутилацета химические свойства, назначение, производство
Описание
Isobutyl acetate has a fruity (currant-pear), floral (hyacinth-rose) odor and a characteristic ether-like, slightly bitter flavor. May be prepared by direct esterification of isobutyl alcohol with acetic acid.Химические свойства
Isobutyl acetate is a colorless liquid with a fruit flavor. Isobutyl acetate is moisture sensitive, incompatible with ignition sources, moisture, excess heat, strong oxidizing agents, and strong bases; on decomposition, it releases carbon monoxide and carbon dioxide. It is used for nitrification fiber and paint solvents, chemical reagents, and modulation spicesФизические свойства
Colorless liquid with a fruity odor. Experimentally determined detection and recognition odor threshold concentrations were 1.7 mg/m3 (360 ppbv) and 2.4 mg/m3 (510 ppbv), respectively (Hellman and Small, 1974).Вхождение
Reported found in, apple, apricot, banana, currants, guava, grapes, melon, pear, blackcurrant, papaya, pineapple, strawberry, vinegar, wheat bread, Parmesan and Gruyere cheese, beef fat, beer, cognac, rum, cider, whiskies, sherry, grape wines, port, olive, cocoa, passion fruit, plum, starfruit, bantu beer, plum and grape brandy, mango, tamarind, apple brandy, figs, plum wine, litchi, sake, nectarine, naranjilla fruit, Cape gooseberry and Roman chamomile oil.Использование
Isobutyl Acetate is a flavoring agent that is a clear colorless liquid with a fruity odor resembling banana when diluted. it is soluble in alcohol, propylene glycol, most fixed oils, and mineral oil, and slightly soluble in water. it is obtained by synthesis.Подготовка
By direct esterification of isobutyl alcohol with acetic acid.Определение
ChEBI: The acetate ester of isobutanol.Методы производства
Isobutyl acetate may be made from methyl isobutyl ketone. It may also be made by treating isobutanol with acetic acid in the presence of catalysts. The Tischenko reaction of acetaldehyde with isobutyraldehyde yields a mixture of isobutyl acetate with ethyl acetate and isobutyl isobutyrate.Общее описание
A clear colorless liquid with a fruity odor. Flash point 64°F. Less dense than water (6.2 lb / gal) and insoluble in water. Vapors are heavier than air .Реакции воздуха и воды
Highly flammable. Insoluble in water.Профиль реактивности
Isobutyl acetate reacts exothermically with acids to give alcohols and other acids. May react sufficiently exothermically with strong oxidizing acids to ignite the reaction products. Reactions with bases also generate heat. Combination with strong reducing agents (alkali metals and hydrides) generates flammable hydrogen.Опасность
Flammable, dangerous fire risk.Угроза здоровью
Isobutyl acetate is more toxic but less of anirritant than n-butyl acetate. The toxic symp toms include headache, drowsiness, irritationof upper respiratory tract, and anesthesia.A 4-hour exposure to 8000 ppm was lethalto rats. It produced mild to moderate irri tation on rabbits’ skin. The irritation ineyes was also mild to moderate. The LD50oral value in rabbit is within the range4800 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.Химическая реактивность
Reactivity with Water No reaction; Reactivity with Common Materials: Softens and dissolves many types of plastics; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.Возможный контакт
n-Butyl acetate is an important solvent in the production of lacquers, leather and airplane dopes, and perfumes. It is used as a solvent and gasoline additive. sec-Butyl acetate is used as a widely used solvent for nitrocellulose, nail enamels and many different purposes. tert-Butyl acetate is common industrial solvent used in the making of lacquers, artificial leather, airplane dope, perfume; and as a food additive. Isobutyl acetate is used as a solvent and in perfumes and artificial flavoring materialsЭкологическая судьба
Chemical/Physical. Slowly hydrolyzes in water forming 2-methylpropanol and acetic acid.At an influent concentration of 1,000 mg/L, treatment with GAC resulted in an effluent concentration of 180 mg/L. The adsorbability of the carbon used was 164 mg/g carbon (Guisti et al., 1974).
Перевозки
UN1123 Butyl acetates, Hazard Class: 3; Labels: 3—Flammable liquid.Несовместимости
All butyl acetates are incompatible with nitrates, strong oxidizers; strong alkalies; strong acids. Butyl acetates may form explosive mixture with air; reacts with water, on standing, to form acetic acid and n-butyl alcohol. Violent reaction with strong oxidizers and potassium-tert-butoxide. Dissolves rubber, many plastics, resins and some coatings. May accumulate static electrical charges, and may cause ignition of its vaporsУтилизация отходов
Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.Изобутилацета запасные части и сырье
Изобутилацета поставщик
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