分 类: 基本有机原料产品 中文名称： 巴豆醛 英文名称： Crotonaldehyde 中文别名： β-甲基丙烯醛;丁烯醛;反式-2-丁烯醛 CAS RN.： 4170-30-3 分 子 式： C4H6O 物化性质： 性状 顺式和反式两种异构体。顺式异色体不稳定。普通商品是反式异构体。无色透明易燃液体，有窒息性刺激气味。与光或空气接触，变为淡黄色液体，逐渐氧化成巴豆酸，其蒸气为极强的催泪剂。 熔点 -69℃ 沸点 102.2℃ 相对密度 0.8495 折射率 1.4384 闪点 13℃ 溶解性 易溶于水，可与乙醇、乙醚、苯、甲苯、煤油和汽油等以任何比例互混。 用 途：有机合成原料，用于制取丁醛；丁醇；2-乙基己醇；山梨酸；3-甲氧基丁醛；3-甲氧基丁醇；丁烯酸；喹哪啶；顺丁烯二酸酐及吡啶系产品。另外，丁烯醛与丁二烯反应可制得环氧树脂原料及环氧增塑剂。与季戊成四醇反应可得到耐热树脂原料。丁烯醛还可用于制取选矿用发泡剂；染料及橡胶抗氧剂；杀虫剂及军用化学品。工业级丁烯醛实际上是反式异构体和顺式异构体组成的混合物[4170-30-3]。但顺式异构体不稳定，含量不到1%。 对人体危害：对眼结膜及上呼吸道粘膜有强烈刺激作用。长期接触引起慢性鼻炎、神经系统机能障碍 该产品属于剧毒品 CAS Number:4170-30-3 Name: 2-Butenal Superlist Name: Crotonaldehyde Formula: C4H6 O Molecular Weight: 70.09 Synonyms: Crotonaldehyde(7CI,8CI); 1-Formylpropene; 2-Butenaldehyde; But-2-en-1-al; Crotonal; Crotonicaldehyde; NSC 56354 EINECS: 224-030-0 Density: 0.853 g/mL at 20 °C Melting Point: -76ºC Boiling Point: 104ºC Flash Point: 48 ºF Solubility: Partially soluble. Appearance: colourless liquid Hazard Symbols: An animal carcinogen. Irritating to eyes and skin. TLV: 2 ppm. Flammable, dangerous fire risk. Explosive limits in air 2.9–15.5% by volume. Risk Codes: 11-24/25-26-37/38-41-48/22-50-68 Safety: Suspected carcinogen with experimental carcinogenic data. Poison by ingestion and inhalation. Mutation data reported. An eye, skin, and mucous membrane irritant. A lachrymating material that can cause corneal burns and is very dangerous to the eyes. Caution: Keep away from heat and open flame. Keep container closed. Use with adequate ventilation. Extremely irritating to eyes, skin, mucous membranes. When necessary, the lachrymatory effect of the vapors may be counteracted by ammonia fumes. Dangerous fire hazard when exposed to heat or flame; can react with oxidizing materials. To fight fire, use alcohol foam, CO2, dry chemical. Reacts violently with 1,3-butadiene. Violent hypergolic reaction with concentrated nitric acid. When heated to decomposition it emits acrid smoke and fumes. See also ALDEHYDES.
