乳酸ブチル 化學(xué)特性,用途語(yǔ),生産方法
外観
無(wú)色澄明の液體
定義
本品は、乳酸(*)とブタノール(*)のエステルであり、次の化學(xué)式で表される。
參照表示名稱：乳酸, ブタノール
溶解性
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
香料、溶剤、洗浄剤、合成中間體、高沸點(diǎn)溶剤
用途
エチルセルロース等の溶剤、有機(jī)合成原料(醫(yī)薬、農(nóng)薬)、香料原料。
化粧品の成分用途
溶剤、香料
化學(xué)的特性
Butyl lactate has a faintly sweet, pleasant odor with buttery, creamy, milky, sweet, mushroom undertones. Two optically
active and one racemic form of butyl lactate are known.
天然物の起源
Reported found in cognac, cider and white wine.
使用
n-Butyl lactate is used as a food and feed additive.
製造方法
The racemic d-form is prepared by reacting zinc ammonium l-lactate with n-butyl alcohol in the presence of concentrated
H2SO4; the l-form is prepared by reacting zinc ammonium d-lactate with n-butyl alcohol in the presence of HCl; the racemic form
is prepared by several methods, one being from calcium or sodium lactate and n-butyl alcohol in benzene in the presence of H2SO4,
with subsequent azeotropic distillation of the mixture.
調(diào)製方法
n-Butyl lactate may be prepared via esterification of lactic
acid and n-butyl alcohol.
一般的な説明
A clear colorless liquid with a mild odor. Flash point 168°F. Less dense than water and insoluble in water. Vapors heavier than air. Used as a solvent, and to make other chemicals.
空気と水の反応
Insoluble in water.
反応プロフィール
Butyl lactate is an ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides. Avoid contact with strong oxidizing agents and strong bases. Will not polymerize [USCG, 1999].
危険性
Toxic. Upper respiratory tract irritant.
健康ハザード
VAPOR: Headache, coughing, possible sleepiness, nausea or vomiting, or dizziness may result. LIQUID: Irritating to skin and eyes.
安全性プロファイル
Poison by
intraperitoneal route. A skin irritant. Toxic
concentration in air for humans is about 4
ppm. Flammable when exposed to heat or
flame; can react with oxidizing materials. To
fight fire, use alcohol foam, foam, CO2, dry
chemical. When heated to decomposition it
emits acrid smoke and irritating fumes. See
also ESTERS, n-BUTYL ALCOHOL, and
LACTIC ACID.
職業(yè)ばく露
Butyl lactate is a liquid. Molecular
weight 5 146.19; boiling point 5 170C @ 760 mmHg;
freezing/melting point 5 243C; flash point 5 71C(oc). Autoignition temperature 5 340382C. Hazard
identification (based on NFPA-704 M Rating System):
Health 1; flammability 2; reactivity 0 . Slightly soluble in
water.
輸送方法
A UN1993 Flammable liquids, n.o.s., Hazard
Class: 3; Labels: 3—Flammable liquid, Technical Name
Required.
不和合性
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 bases, strong acids, oxoacids, epoxides
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.
乳酸ブチル 上流と下流の製品情報(bào)
原材料
準(zhǔn)備製品