5-エチル-2-ピコリン 化學(xué)特性,用途語,生産方法
外観
無色～暗褐色, 澄明の液體
溶解性
エタノール及びアセトンに極めて溶けやすく、水にほとんど溶けない。
用途
有機(jī)合成原料。
用途
ニコチン酸、ニコチンアミドの合成原料
化學(xué)的特性
5-Ethyl-2-methylpyridine has a sharp penetrating aromatic aroma.
天然物の起源
Reported in dry red beans, cocoa, tea, whiskey, peppermint oil, roasted and fried chicken, cocoa, coffee and
cooked shrimps.
使用
5-Ethyl-2-methylpyridine is used as specific solvent and as intermediate for several chemical reactions. Attributes PIS available on request. Please contact us. Contact
製造方法
Prepared by heating acetaldehyde ammonia in a double volume of absolute alcohol; by heating ammonia water and paraldehyde in presence of ammonium acetate.
一般的な説明
A colorless to yellow liquid. Insoluble in water and more dense than water. Hence sinks in water. Contact may slightly irritate the skin, eyes, and mucous membranes. May be toxic by ingestion. Used to make other chemicals.
空気と水の反応
Insoluble in water.
反応プロフィール
5-Ethyl-2-methylpyridine neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. May generate hydrogen, a flammable gas, in combination with strong reducing agents such as hydrides. A mixture of nitric acid and methyl ethyl pyridine was placed in an autoclave and heated and stirred for 40 minutes. The emergency vent opened due to a sudden pressure rise, then an explosion occurred after about 90 seconds [Chem. Eng. News 30:3348. 1952].
危険性
Toxic. Corrosive and strong irritant to tis-sue.
健康ハザード
Breathing of vapors will cause vomiting and chest discomfort. Contact with liquid causes skin and eye burns.
火災(zāi)危険
Special Hazards of Combustion Products: Irritating vapors are generated when heated
安全性プロファイル
Poison by ingestion and
subcutaneous routes. Moderately toxic by
skin contact. iMildly toxic by inhalation.
Corrosive. A severe skin and eye irritant.
Flammable when exposed to heat or flame;
can react vigorously with oxidizers.
Potentially explosive reaction with nitric acid
at 145℃/14.5 bar. To fight fire, use alcohol foam. When heated to decomposition it
emits acrid smoke and irritating fumes. See
also ALDEHYDES.
職業(yè)ばく露
In manufacture of nicotinic acid,
vinyl pyridine monomer; in intermediates for insecticides,
germicides and textile chemicals
輸送方法
UN23002-Methyl-5-ethylpyridine, Hazard Class:
6.1; Labels: 6.1-Poisonous materials.
不和合性
Vapors 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, aldehydes, acid chlorides; chloroformates, isocyanates, phenols, cresols.
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
5-エチル-2-ピコリン 上流と下流の製品情報(bào)
原材料
準(zhǔn)備製品