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2-メチル-1-プロパノール

2-メチル-1-プロパノール 化学構造式
78-83-1
CAS番号.
78-83-1
化学名:
2-メチル-1-プロパノール
别名:
2-メチル-1-プロパノール;イソブタノール;イソブチルアルコール;イソプロピルカルビノール;2-メチルプロパン-1-オール;2-メチル-1-プロパノ-ル;2-メチル-1-プロパノール イソブタノール;ISO-ブチルアルコール;イソブタノル;イソブチルアルコール(2-メチル-1-プロパノール);2‐メチル‐1‐プロパノール;2-メチル-1-プロパノール 99.5%;2-メチル-1-プロパノール ACS REAGENT,≥99.0%;2-メチル-1-プロパノール PURISS. P.A.,ACS REAGENT,REAG. PH. EUR.,≥99% (GC);2-メチル-1-プロパノール イソブチルアルコールイソブタノール;2-メチル-1-プロパノール クロマソルブ,FOR HPLC,99.5%;イソブタノール標準液 (1 ΜG/ΜLペンタン溶液);イソブチルアルコール, ルミナゾール®;イソブタノール, 10 mg/mL in Water;イソブタノール, 99%
英語化学名:
2-Methyl-1-propanol
英語别名:
IBA;FEMA 2179;i-Butanol;sobutanol;isobutano;ISOBUTANOL;iso-C4H9OH;BUTANOL-ISO;femanumber2179;ISOBUTANOL(SG)
CBNumber:
CB3158955
化学式:
C4H10O
分子量:
74.12
MOL File:
78-83-1.mol

2-メチル-1-プロパノール 物理性質

融点 :
?108 °C (lit.)
沸点 :
108 °C (lit.) 108 °C
比重(密度) :
0.803 g/mL at 25 °C (lit.)
蒸気密度:
2.55 (vs air)
蒸気圧:
8 mm Hg ( 20 °C)
屈折率 :
n20/D 1.396(lit.)
FEMA :
2179 | ISOBUTYL ALCOHOL
闪点 :
82 °F
貯蔵温度 :
Store at +5°C to +30°C.
溶解性:
water: miscible70g/L at 20°C
外見 :
Solid
酸解離定数(Pka):
>14 (Schwarzenbach et al., 1993)
色:
APHA: ≤10
Relative polarity:
0.552
PH:
7 (80g/l, H2O, 20℃)
臭い (Odor):
Slightly suffocating; nonresidual alcoholi
臭気閾値(Odor Threshold):
0.011ppm
爆発限界(explosive limit):
1.5-12%(V)
水溶解度 :
95 g/L (20 ºC)
極大吸収波長 (λmax):
λ: 260 nm Amax: 0.10
λ: 280 nm Amax: 0.06
Merck :
14,5131
JECFA Number:
251
BRN :
1730878
Henry's Law Constant:
20.0 at 30.00 °C, 72.2 at 50.00 °C, 133 at 60.00 °C, 216 at 70.00 °C, 330 at 80.00 °C (headspace- GC, Hovorka et al., 2002)
暴露限界値:
TWA 300 mg/m3 (100 ppm) NIOSH, 150 mg/m3 (50 ppm) (ACGIH); IDLH 8000 ppm.
安定性::
Stable. Flammable. Incompatible with strong oxidizing agents, aluminium.
InChIKey:
ZXEKIIBDNHEJCQ-UHFFFAOYSA-N
CAS データベース:
78-83-1(CAS DataBase Reference)
NISTの化学物質情報:
1-Propanol, 2-methyl-(78-83-1)
EPAの化学物質情報:
Isobutanol (78-83-1)
安全性情報
  • リスクと安全性に関する声明
  • 危険有害性情報のコード(GHS)
主な危険性  Xi
Rフレーズ  10-37/38-41-67
Sフレーズ  13-26-37/39-46-7/9
RIDADR  UN 1212 3/PG 3
WGK Germany  1
RTECS 番号 NP9625000
自然発火温度 801 °F
TSCA  Yes
国連危険物分類  3
容器等級  III
HSコード  29051990
有毒物質データの 78-83-1(Hazardous Substances Data)
毒性 LD50 orally in rats: 2.46 g/kg (Smyth)
消防法 危険物第4類第二石油類(非水溶性)
化審法 (2)-3049
安衛法 有機則 第二種有機溶剤等
絵表示(GHS)
注意喚起語 Danger
危険有害性情報
コード 危険有害性情報 危険有害性クラス 区分 注意喚起語 シンボル P コード
H226 引火性の液体および蒸気 引火性液体 3 警告
H315 皮膚刺激 皮膚腐食性/刺激性 2 警告 P264, P280, P302+P352, P321,P332+P313, P362
H318 重篤な眼の損傷 眼に対する重篤な損傷性/眼刺激 性 1 危険 P280, P305+P351+P338, P310
H335 呼吸器への刺激のおそれ 特定標的臓器毒性、単回暴露; 気道刺激性 3 警告
H336 眠気やめまいのおそれ 特定標的臓器毒性、単回暴露; 麻酔作用 3 警告 P261, P271, P304+P340, P312,P403+P233, P405, P501
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。
P261 粉じん/煙/ガス/ミスト/蒸気/スプレーの吸入を避ける 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。
P403+P235 換気の良い場所で保管すること。涼しいところに 置くこと。
P405 施錠して保管すること。

2-メチル-1-プロパノール 価格 もっと(65)

メーカー 製品番号 製品説明 CAS番号 包装 価格 更新時間 購入
富士フイルム和光純薬株式会社(wako) W01ACSM-8015B-5031-15 イソブタノール
Isobutanol, 10 mg/mL in Water
78-83-1 1mL ¥9300 2021-03-23 購入
富士フイルム和光純薬株式会社(wako) W01W0109-0373 イソブタノール標準液 (1 μg/μlペンタン溶液)
Isobutanol Standard Solution (1ug/ul Pentane Solution)
78-83-1 2mL×5A ¥12000 2018-12-26 購入
東京化成工業 I0094 2-メチル-1-プロパノール >99.0%(GC)
2-Methyl-1-propanol >99.0%(GC)
78-83-1 25mL ¥1900 2021-03-23 購入
東京化成工業 I0094 2-メチル-1-プロパノール >99.0%(GC)
2-Methyl-1-propanol >99.0%(GC)
78-83-1 500mL ¥2500 2021-03-23 購入
関東化学株式会社(KANTO) 04355-01 2‐メチル‐1‐プロパノール >98.0%(GC)
2‐Methyl‐1‐propanol >98.0%(GC)
78-83-1 500mL ¥1400 2021-03-23 購入

2-メチル-1-プロパノール 化学特性,用途語,生産方法

外観

無色澄明の液体

溶解性

水に可溶 (10%, 20℃), アルコール, エーテルと混和。エタノール及びジエチルエーテルに極めて溶けやすく、水にやや溶けやすい。

解説

C4H10O(74.12).2-メチル-1-プロパノール(2-methyl-1-propanol)ともいう.脂肪族飽和アルコール類の一つ.フーゼル油中に含まれる.工業的製法には,発酵法と,プロペンのオキソ合成法でブチルアルコールとともに合成する方法とがある."無色,引火性の液体.融点-108 ℃,沸点107.79 ℃."0.79806."1.3939.爆発範囲(下限)1.68体積%.エタノール,エーテルに易溶,水に可溶.果物エッセンス用エステルの合成原料,溶剤などに用いられる.[CAS 78-83-1]
森北出版「化学辞典(第2版)

用途

大気中等イソブタノール(2-メチル-1-プロパノール)のGC分析標準液。

用途

イソブタノールは、塗料樹脂、アクリル酸イソブチル、酢酸イソブチル、メタクリル酸イソブチル、シンナー等の原料に使用されます。
一方、様々な有機物をよく溶解することから、溶媒としても広く利用されています。 

特徴

1.イソブタノール(IBA)はイソブチルアルコールとも呼ばれ、炭素数4の分岐鎖アルコールです。
2.イソブタノールは水にほとんど溶解せず、ほとんどの有機溶媒に溶解します。

主な用途

イソブタノール(IBA)はイソブチルアルコールとも呼ばれ、炭素数4の分岐鎖アルコールです、は水にほとんど溶解せず、ほとんどの有機溶媒に溶解します。
  1. 塗料樹脂、アクリル酸イソブチル、酢酸イソブチル、メタクリル酸イソブチル、シンナー等の原料に使用されます。
  2. 様々な有機物をよく溶解することから、溶媒としても広く利用されています。
  3. 溶剤型接着剤、水性型接着剤に使用される。

説明

Isobutyl alcohol has a disagreeable odor. May be prepared from isobutylene; by reduction of isobutyraldehyde with sodium amalgam or in the presence of a catalyst; by fermentation of isobutyraldehyde; isolated during fermentation of carbohydrates.

化学的特性

Isobutyl alcohol has a penetrating, wine-like, disagreeable odor

物理的性質

Clear, colorless, oily liquid with a sweet, musty odor. Burning taste. The average least detectable odor threshold concentration in water at 60 °C was 0.36 mg/L (Alexander et al., 1982). Experimentally determined detection and recognition odor threshold concentrations were 2.0 mg/m3 (660 ppbv) and 5.4 mg/m3 (1.8 ppmv), respectively (Hellman and Small, 1974). An odor threshold concentration of 11 ppbv was reported by Nagata and Takeuchi (1990).

天然物の起源

Reported found in the essential oils of Java citronella, tea, Eucalyptus amygdalina. Also reported in apple and currant aromas; in apricots, banana, sweet cherry, orange, grapefruit and tangerine juice, berries, guava, grapes, melon, papaya, pear, pineapple, leek, peas, rutabaga, tomato, ginger, spearmint oil, vinegar, breads, cheeses, milk, fish oil, meats, hop oil, beer, cognac, rum, whiskies, sherry, cider, grape wines, cocoa, tea, coffee, nuts, oats, soybean, avocado, olive, passion fruit, plum, beans, mango, starfruit, bantu beer, plum brandy, tamarind, fig, cardamom, gin, quince, radish, prickly pear, litchi, sukiyaki, lovage leaf, buckwheat, sweet corn, laurel, malt, wort, elderberry juice, dried bonito, krill, kiwifruit, loquat, fruit brandies and wines, endive, shrimp, truffle, red currants, Roman chamomile oil and other sources.

使用

Isobutanol is widely used in the productionof isobutyl acetate for lacquers, isobutylphthalate for plasticizers; as a solvent forplastics, textiles, oils, and perfumes; and asa paint remover.

使用

Isobutyl Alcohol is a reagent used in organic reactions. It is used in the synthesis of new fluorinating reagents. It is also used in the lipase-catalyzed production of biodiesel as an energy source.

使用

manufacture of esters for fruit flavoring essences; solvent in paint, varnish removers.

定義

ChEBI: An alkyl alcohol that is propan-1-ol substituted by a methyl group at position 2.

製造方法

From isobutylene; by reduction of isobutyraldehyde with sodium amalgam or in the presence of a catalyst; by fermentation of isobutyraldehyde; isolated during fermentation of carbohydrates

調製方法

Isobutanol is commercially produced almost exclusively by the hydrogenation of isobutyraldehyde obtained from propylene using the oxo process.

Aroma threshold values

Detection: 360 ppb to 3.3 ppm

一般的な説明

A clear colorless liquid with a sweet odor. Flash point 85 - 100°F. Less dense than water. Vapors heavier than air.

空気と水の反応

Highly flammable. Soluble in water.

反応プロフィール

2-Methyl-1-propanol is an alcohol. Flammable and/or toxic gases are generated by the combination of alcohols with alkali metals, nitrides, and strong reducing agents. They react with oxoacids and carboxylic acids to form esters plus water. Oxidizing agents convert them to aldehydes or ketones. Alcohols exhibit both weak acid and weak base behavior. They may initiate the polymerization of isocyanates and epoxides. 2-Methyl-1-propanol is incompatible with strong oxidizers.

危険性

Flammable, moderate fire risk. Strong irritant.

健康ハザード

Inhalation causes eye and throat irritation andheadache. Ingestion may cause depression ofthe central nervous system. It is an irritantto the skin, causing cracking. Target organsare the eyes, skin, and respiratory system.
LD50 value, oral (rabbits): 3750 mg/kg.

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.

化学反応性

Reactivity with Water: No reaction; Reactivity with Common Materials: No reactions; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

職業ばく露

Butyl alcohols are used as solvents for paints, lacquers, varnishes, natural and synthetic resins, gums, vegetable oils, dyes, camphor, and alkaloids. They are also used as an intermediate in the manufacture of pharmaceuticals and chemicals; in the manufacture of artificial leather, safety glass; rubber and plastic cements, shellac, raincoats, photographic films, perfumes; and in plastic fabrication.

Carcinogenicity

Nineteen Wistar rats were dosed with 0.2mL of isobutanol twice weekly by oral intubation. The average survival time was 495 days. It was reported that malignant tumors developed in three animals; one had a forestomach carcinoma and a liver cell carcinoma, another had a forestomach carcinoma and myelogenous leukemia, and the third, a myelogenous leukemia. In the same study, 24 rats were injected subcutaneously with 0.05 mL/kg twice weekly. The average survival time was 544 days. A total of eight malignant tumors developed: two forestomach carcinomas, two liver sarcomas, one spleen sarcoma, one mesothelioma, and two retroperitoneal sarcomas. Increased incidences of total tumors were observed by both routes of administration, but there was no significant increased incidence of any tumor type at any site. This study is considered inappropriate for cancer risk assessment.

Source

A product of whiskey fermentation (quoted, Verschueren, 1983). Isobutyl alcohol also occurs in tea leaves and java cintronella plants (Duke, 1992).

環境運命予測

Biological. Bridié et al. (1979) reported BOD and COD values of 0.41 and 2.46 g/g using filtered effluent from a biological sanitary waste treatment plant. These values were determined using a standard dilution method at 20 °C for a period of 5 d. When a sewage seed was used in a separate screening test, a BOD value of 1.63 g/g was obtained. Heukelekian and Rand (1955) reported a 5-d BOD value of 1.66 g/g which is 64.0% of the ThOD value of 2.59 g/g. Using the BOD technique to measure biodegradation, the mean 5-d BOD value (mM BOD/mM isobutyl alcohol) and ThOD were 3.92 and 65.3%, respectively (Vaishnav et al., 1987).
Chemical/Physical. Isobutyl alcohol will not hydrolyze because it does not have a hydrolyzable functional group (Kollig, 1993).
At an influent concentration of 1,000 mg/L, treatment with GAC resulted in an effluent concentration of 581 mg/L. The adsorbability of the carbon used was 84 mg/g carbon (Guisti et al., 1974).

輸送方法

UN1120 Butanols, Hazard Class: 3; Labels: 3— Flammable liquid. UN1212 Isobutanol or Isobutyl alcohol, Hazard Class: 3; Labels: 3—Flammable liquid

純化方法

Isobutanol is dried by refluxing with CaO and BaO for several hours, followed by treatment with calcium or aluminium amalgam, then fractional distilling it from sulfanilic or tartaric acids. More exhaustive purifications involve formation of phthalate or borate esters. Heating it with phthalic anhydride gives the acid phthalate which, after crystallisation to constant melting point (m 65o) from pet ether, is hydrolysed with aqueous 15% KOH. The alcohol is distilled off as the water azeotrope and dried (K2CO3, then anhydrous CuSO4), and finally magnesium turnings, followed by fractional distillation. [Hückel & Ackermann J Prakt Chem 136 15 1933.] The borate ester is formed by heating the dried alcohol for 6hours in an autoclave at 160-175o with a quarter of its weight of boric acid. After fractional distillation under vacuum, the ester is hydrolysed by heating for a short time with aqueous alkali and the alcohol is dried with CaO and distilled. [Michael et al. J Am Chem Soc 38 653 1916.] Alternatively dry the alcohol with K2CO3, CaSO4 or CaCl2, filter and fractionally distil it. For further drying, the redistilled alcohol can be refluxed with the appropriate alkyl phthalate or succinate as described under ethanol. [Beilstein 1 IV 1588.]

不和合性

Butyl alcohols may form explosive mixture with air. In all cases they are Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Attacks some plastics, rubber and coatings. n-Butanol is incompatible with strong acids; halogens, caustics, alkali metals; aliphatic amines; isocyanates. sec-Butanol forms an explosive peroxide in air. Ignites with chromium trioxide. Incompatible with strong oxidizers; strong acids; aliphatic amines; isocyanates, organic peroxides. tert-Butanol is incompatible with strong acids (including mineral acid), including mineral acids; strong oxidizers or caustics, aliphatic amines; isocyanates, alkali metals (i.e., lithium, sodium, potassium, rubidium, cesium, francium). isoButanol is incompatible with strong acids; strong oxidizers; caustics, aliphatic amines; isocyanates, alkali metals and alkali earth. May react with aluminum at high temperatur

廃棄物の処理

Incineration, or bury absorbed waste in an approved land fill.

2-メチル-1-プロパノール 上流と下流の製品情報

原材料

準備製品


2-メチル-1-プロパノール 生産企業

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78-83-1(2-メチル-1-プロパノール)キーワード:


  • 78-83-1
  • NATURAL ISO BUTYL ALCOHOL
  • FEMA 2179
  • ISOBUTANOL
  • ISOBUTANOL, 2-METHYL-1-PROPANOL
  • ISOBUTYL ALCOHOL
  • ISO-PROPYL BARBINOL
  • ISOPROPYL CARBINOL
  • IBA
  • BUTANOL-ISO
  • 2-Methyl-1-propanol, 99%, extra pure
  • 2-METHYL-1-PROPANOL
  • 2-Methyl propanol
  • 2-METHYLPROPAN-1-OL
  • ISOBUTANOL (ISOBUTYL ALCOHOL)
  • ISOBUTANOL, 1000MG, NEAT
  • 2-METHYL-1-PROPANOL 99+% A.C.S. REAGE&
  • ISOBUTYL ALCOHOL ACS REAGENT
  • ISOBUTYL ALCOHOL 99+% NATURAL FCC
  • 2-METHYL-1-PROPANOL REAGENTPLUS(TM) &
  • 2-METHYL-1-PROPANOL, ANHYDROUS, 99.5%
  • 2-METHYL-1-PROPANOL, 99.5%, HPLC GRADE
  • 2-METHYL-1-PROPANOL, STANDARD FOR GC
  • 2-METHYL-1-PROPANOL, 99+%, A.C.S. SPECTR OPHOTOMETRIC GRADE
  • 2-METHYL-1-PROPANOL >=99% A.C.S. SPECT
  • ISOBUTYL ALCOHOL 99+% FCC
  • 1-Hydroxymethylpropane
  • 1-propanol,2-methyl-
  • 2-methyl-1-propano
  • 2-methyl-1-propanyl alcohol
  • 2-methylpropanoI
  • 2-メチル-1-プロパノール
  • イソブタノール
  • イソブチルアルコール
  • イソプロピルカルビノール
  • 2-メチルプロパン-1-オール
  • 2-メチル-1-プロパノ-ル
  • 2-メチル-1-プロパノール イソブタノール
  • ISO-ブチルアルコール
  • イソブタノル
  • イソブチルアルコール(2-メチル-1-プロパノール)
  • 2‐メチル‐1‐プロパノール
  • 2-メチル-1-プロパノール 99.5%
  • 2-メチル-1-プロパノール ACS REAGENT,≥99.0%
  • 2-メチル-1-プロパノール PURISS. P.A.,ACS REAGENT,REAG. PH. EUR.,≥99% (GC)
  • 2-メチル-1-プロパノール イソブチルアルコールイソブタノール
  • 2-メチル-1-プロパノール クロマソルブ,FOR HPLC,99.5%
  • イソブタノール標準液 (1 ΜG/ΜLペンタン溶液)
  • イソブチルアルコール, ルミナゾール®
  • イソブタノール, 10 mg/mL in Water
  • イソブタノール, 99%
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