1-Пентанол
- английское имя1-Pentanol
- CAS №71-41-0
- CBNumberCB7158872
- ФормулаC5H12O
- мольный вес88.15
- EINECS200-752-1
- номер MDLMFCD00002977
- файл Mol71-41-0.mol
химическое свойство
| Температура плавления | -78 °C (lit.) |
| Температура кипения | 136-138 °C (lit.) |
| плотность | 0.811 g/mL at 25 °C (lit.) |
| плотность пара | 3 (vs air) |
| давление пара | 1 mm Hg ( 13.6 °C) |
| FEMA | 2056 | AMYL ALCOHOL |
| показатель преломления | n |
| Fp | 120 °F |
| температура хранения | Store below +30°C. |
| растворимость | water: soluble22.8g/L at 25°C |
| форма | Liquid |
| пка | 15.24±0.10(Predicted) |
| цвет | APHA: ≤30 |
| Относительная полярность | 0.568 |
| Водородный показатель | 7 |
| Запах | Pleasant 0.1 ppm |
| Odor Type | fermented |
| Относительная плотность газов（воздух=1） | 3.04 |
| Порог?обнаружения?запаха? | 0.1ppm |
| Пределы взрываемости | 10%, 100°F |
| Растворимость в воде | 22 g/L (22 ºC) |
| Мерк | 14,7118 |
| Номер JECFA | 88 |
| БРН | 1730975 |
| Диэлектрическая постоянная | 15.8（20℃） |
| Стабильность | Stable. Flammable. Incompatible with strong oxidizing agents. |
| LogP | 1.51 |
| Вещества, добавляемые в пищу (ранее EAFUS) | AMYL ALCOHOL |
| Справочник по базе данных CAS | 71-41-0(CAS DataBase Reference) |
| FDA UNII | M9L931X26Y |
| Справочник по химии NIST | 1-Pentanol(71-41-0) |
| Система регистрации веществ EPA | 1-Pentanol (71-41-0) |
больше
| Коды опасности | Xn,F,Xi | |||||||||
| Заявления о рисках | 10-20-37-66-37/38 | |||||||||
| Заявления о безопасности | 46-36/37 | |||||||||
| РИДАДР | UN 1105 3/PG 3 | |||||||||
| OEB | A | |||||||||
| OEL | TWA: 100.0 ppm; 360.0 mg/m3, STEL: 125.0 ppm; 450.0 mg/m3 | |||||||||
| WGK Германия | 1 | |||||||||
| RTECS | SB9800000 | |||||||||
| Температура самовоспламенения | 572 °F | |||||||||
| Примечание об опасности | Irritant/Flammable | |||||||||
| TSCA | Yes | |||||||||
| кода HS | 2905 19 00 | |||||||||
| Класс опасности | 3 | |||||||||
| Группа упаковки | II | |||||||||
| Банк данных об опасных веществах | 71-41-0(Hazardous Substances Data) | |||||||||
| Токсичность | LD50 orally in Rabbit: 3670 mg/kg LD50 dermal Rabbit 2306 mg/kg | |||||||||
| 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.
H226：Воспламеняющаяся жидкость. Пары образуют с воздухом взрывоопасные смеси.
H332：Вредно при вдыхании.
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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.
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+P312：ПРИ ВДЫХАНИИ: Свежий воздух, покой. Обратиться за медицинской помощью при плохом самочувствии.
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.
1-Пентанол химические свойства, назначение, производство
Описание
1-Pentanol is a monohydroxy alcohol. It is a colorless liquid with a characteristic odor. Its combustion properties have been studied as it shows promising features to be an alternative to gasoline and diesel fuels. The conversion of 1-pentanol to di-n-pentyl ether (DNPE) in liquid phase at 423K in a batch reactor using ion exchange resins as catalysts.Химические свойства
1-Pentanol is a clear, colorless liquid at ambient temperatures, it has a characteristic fusel-like sweet and pleasant odor and burning taste. The air odor detection level (lowest perceptible level) was reported as 10 ppm for 1-pentanol.Вхождение
Reported found in banana, sweet cherry, cranberry, bourbon, vanilla, rice bran and Brazil nut.Использование
Raw material for pharmaceutical preparations;organic synthesis solvent.1-Pentanol is used as a key starting material in the production of dichloro-acetic acid pentyl ester, 2-methyltetrahydrofuran, di-n-penyl ether (DNPE), pentyl butyrate and amyl acetate. As a solvent, it is used for coating CDs and DVDs. It has been considered to be a replacement for gasoline and diesel fuels due to its combustion properties. Further, it is used as a reagent to prepare derivatives of ferulic acid and caffeic acid, which shows anticancer properties.
Методы производства
1-Pentanol is made primarily by the oxo process, which involves the reaction of butenes with carbon monoxide and hydrogen in the presence of a catalyst, followed by hydrogenation. 1-Pentanol is used as a solvent, as a chemical intermediate for esters, and as a food additive and flavoring substance. The primary routes of industrial exposure are by dermal contact and inhalation.Определение
ChEBI: An alkyl alcohol that is pentane in which a hydrogen of one of the methyl groups is substituted by a hydroxy group. It has been isolated from Melicope ptelefolia.Реакции воздуха и воды
1-Pentanol is highly flammable. Soluble in water.Профиль реактивности
Moderately toxic, flammable if exposed to powerful oxidizers. Incompatible with oxidizing materials, hydrogen trisulfide [Sax, 9th ed., 1996, p. 224].Опасность
Lower explosive level in air 1.2% by volume. Moderate fire risk.Угроза здоровью
Irritation of skin, eyes, and respiratory tract; headache and vertigo; dyspnea and cough; nausea, vomiting, and diarrhea. Double vision, deafness, delirium, and occasionally fatal poisoning, preceded by severe nervous symptoms, have been reported. Coma, glycosuria, and methemoglobinemia can occur.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.Профиль безопасности
1-Pentanol is moderately toxic by ingestion and skin contact. An eye and upper respiratory irritant by inhalation. A severe skin and eye irritant. Ingestion can cause headache, nausea, vomiting, delirium, and methemoglobin formation. Mutation data reported. Extremely flammable if exposed to heat, flame, or powerful oxiduers. Moderately explosive when exposed to flame. Incompatible with oxidzing materials, hydrogen trisulfide. To fight fire, use alcohol foam, dry chemical.Возможный контакт
(n-isomer); Suspected reprotoxic hazard, Primary irritant (w/o allergic reaction), (iso-, primary): Possible risk of forming tumors, Primary irritant (w/o allergic reaction), (sec-, active primary-, and other isomers) Primary irritant (w/o allergic reaction). Used as a solvent in organic synthesis and synthetic flavoring, pharmaceuticals, corrosion inhibitors; making plastics and other chemicals; as a flotation agent. The (n-isomer) is used in preparation of oil additives, plasticizers, synthetic lubricants, and as a solvent.Перевозки
UN2811 Pentanols, Hazard Class: 3; Labels: 3- Flammable liquid. UN1987 Alcohols, n.o.s., Hazard Class: 3; Labels: 3-Flammable liquid.Методы очистки
Dry 1-pentanol with anhydrous K2CO3 or CaSO4, filter and fractionally distil it. It has also been treated with 1-2% of sodium and heated at reflux for 15hours to remove water and chlorides. Traces of water can be removed from the near-dry alcohol by refluxing it with a small amount of sodium in the presence of 2-3% n-amyl phthalate or succinate followed by distillation (see ethanol). Small amounts of amyl alcohol have been purified by esterifying with p-hydroxybenzoic acid, recrystallising the ester from CS2, saponifying with ethanolic-KOH, drying with CaSO4 and fractionally distilling [Olivier Recl Trav Chim Pays-Bas 55 1027 1936]. [Beilstein 1 IV 1640.]Оценка токсичности
Moderately toxic by ingestion. Vapors may irritate skin and eyes.Несовместимости
Forms an explosive mixture with air. Contact with strong oxidizers and hydrogen trisulfide may cause fire and explosions. Incompatible with strong acids. Violent reaction with alkaline earth metals forming hydrogen, a flammable gas.Утилизация 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.1-Пентанол запасные части и сырье
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1-Пентанол поставщик
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1-Пентанол Обзор)
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