4-メチル-2-ペンタノール 化學(xué)特性,用途語,生産方法
外観
無色澄明の液體
溶解性
水に難溶 (1.7g/100g, 20℃), ほとんどの有機(jī)溶剤に可溶。エタノール及びアセトンに溶けやすく、水にわずかに溶ける。
用途
有機(jī)合成原料。
用途
中沸點(diǎn)溶剤(ラッカーの助溶剤)、浮遊選鉱剤、潤滑油添加剤の原料、メチルアミルアセテート溶剤の原料
化學(xué)的特性
colourless liquid
使用
(^+)-4-Methyl-2-pentanol is employed as a solvent in organic synthesis, dyes and stains, natural resins and waxes. It is an additive to surface coatings. It finds applications in the manufacture of lube oil additives, zinc dialkyldithiophosphate, brake fluids. It is the precursor to some plasticizers and frother in mineral flotation. It acts as a corrosion inhibitor and also utilized in the characterization of volatile fraction of mono varietal wines and tar sand mining processes.
調(diào)製方法
Methyl isobutyl carbinol is prepared commercially as a byproduct
of the synthesis of methyl isobutyl ketone.
一般的な説明
A clear colorless liquid. Flash point 120°F. Less dense than water. Vapors heavier than air.
空気と水の反応
Flammable. Soluble in water.
反応プロフィール
4-Methyl-2-pentanol 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. 4-Methyl-2-pentanol is incompatible with strong oxidizers .
危険性
Moderate fire risk, explosive limits in air 1–
5.5%. Eye and upper respiratory tract irritant, and
central nervous system impairment.
健康ハザード
Vapor irritates eyes and nose; may cause anesthesia. Prolonged contact with liquid causes irritation and cracking of skin; also irritates eyes.
火災(zāi)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.
化學(xué)反応性
Reactivity with Water: No reaction; Reactivity with Common Materials: No reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.
安全性プロファイル
Moderately toxic by
ingestion, skin contact, and intraperitoneal
routes. Mildly toxic by inhalation. A skin
and severe eye irritant. Inhalation of high
concentrations can cause anesthesia.
Flammable liquid when exposed to heat or
flame; can react with oxidizing materials. A
moderate explosion hazard when exposed to
heat or flame. To fight fire, use alcohol
foam. When heated to decomposition it
emits acrid smoke and fumes.
職業(yè)ばく露
MIBC is used as a solvent; in the formulation of brake fluids; as an intermediate in organic
synthesis.
輸送方法
UN2053Methyl isobutyl carbinol, Hazard Class: 3;
Labels: 3-Flammable liquid
純化方法
Wash the 2-pentanol with aqueous NaHCO3, dry and distil it. Purify it further by converting it to the phthalate ester by adding 120mL of dry pyridine and 67g of phthalic anhydride per mole of alcohol, purifying the ester and steam distilling it in the presence of NaOH. The distillate is extracted with ether, and the extract is dried and fractionally distilled. [Levine & Walti J Biol Chem 94 367 1931, Beilstein 1 IV 1717.]
不和合性
Vapor may form explosive mixture with
air. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep
away from alkaline materials, strong acids, peroxysulfuric
acid, strong bases, caustics, aliphatic amines; isocyanates.
Contact with alkali metals produces hydrogen gas.
Permissibl
廃棄物の処理
Incineration; other, more
flammable solvent may be added.
4-メチル-2-ペンタノール 上流と下流の製品情報(bào)
原材料
準(zhǔn)備製品