1-ペンタノール

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Danger

• 危険有害性情報

  H226：引火性の液体および蒸気

  H315：皮膚刺激

  H318：重篤な眼の損傷

  H332：吸入すると有害

  H335：呼吸器への刺激のおそれ

• 注意書き

  P210：熱/火花/裸火/高温のもののような着火源から遠ざ けること。－禁煙。

  P233：容器を密閉しておくこと。

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

  P303+P361+P353：皮膚（または髪）に付着した場合：直ちに汚染された衣 類をすべて脱ぐこと/取り除くこと。皮膚を流水/シャワー で洗うこと。

  P305+P351+P338：眼に入った場合：水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。

1-ペンタノール 価格

1-ペンタノール 化学特性,用途語,生産方法

• 外観

  無色澄明の液体

• 溶解性

  水にわずかに可溶 (2.79g/100ml 水, 22℃), アルコール, エーテル混和。エタノール及びアセトンに極めて溶けやすく、水に溶けにくい。

• 解説

  1-ペンタノール，ペンタノール，ペンチルアルコール，n-アミルアルコールともいう．炭素数5の脂肪族飽和アルコールには異性体が8種類あり，このうち直鎖状，末端炭素にヒドロキシ基をもつ異性体のことをいう．ブテンからオキソ合成法で製造される．特臭のある無色の液体．融点－78.2 ℃，沸点138.00 ℃．d²⁵₄0.8112．n²⁵_D1.4081．爆発範囲(下限)1.19体積％．エタノール，エーテルに易溶，水に微溶．おもに溶剤および酢酸エステルの合成原料として用いられる．

• 用途

  医薬品原料、香料

• 用途

  溶剤、エステル合成の中間体、食品添加物、香味料。

• 説明

  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.

• 化学的特性

  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.

• 天然物の起源

  Reported found in banana, sweet cherry, cranberry, bourbon, vanilla, rice bran and Brazil nut.

• 使用

  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.

• 定義

  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.

• 調製方法

  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.

• 空気と水の反応

  1-Pentanol is highly flammable. Soluble in water.

• 反応プロフィール

  Moderately toxic, flammable if exposed to powerful oxidizers. Incompatible with oxidizing materials, hydrogen trisulfide [Sax, 9th ed., 1996, p. 224].

• 危険性

  Lower explosive level in air 1.2% by volume. Moderate fire risk.

• 健康ハザード

  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.

• 火災危険

  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.

• 安全性プロファイル

  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.

• 職業ばく露

  (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.

• 輸送方法

  UN2811 Pentanols, Hazard Class: 3; Labels: 3- Flammable liquid. UN1987 Alcohols, n.o.s., Hazard Class: 3; Labels: 3-Flammable liquid.

• 純化方法

  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.]

• Toxicity evaluation

  Moderately toxic by ingestion. Vapors may irritate skin and eyes.

• 不和合性

  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.

• 廃棄物の処理

  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.

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1-ペンタノール スペクトルデータ(¹HNMR、¹³CNMR、IR1、MS、Raman)

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