CAS: 25167-67-3; Butene

英文名称Butene
中文名称丁烯
IUPAC名称but-1-ene
CAS编号25167-67-3
EINECS号:246-689-3
分子式:C4H8Lewis structure
分子量:56.11
产品CID: 1209122
产品分类有机原料 → 烃类化合物及其衍生物 → 无环烃

相似结构搜索
InChIKey: WTOOLIQYCQJDBG-BJILWQEISA-N
1S/C4H8/c1-3-4-2/h3H,1,4H2,2H3…
计算化学: 氢键受体数0.0氢键供体数0.0可旋转键数1.0

物理性质

熔点-185.3 °C (FP)
沸点-6.47 °C at 760 mm Hg
闪点215 to 470 °F (USCG, 1999)
密度0.625g/cm3
PSA:0.0
LogP:1.5824
蒸汽压837.25kPa at 25°C
溶解性242.5mg/L at 25°C
敏感性The unsaturated aliphatic hydrocarbons, such as 1-BUTENE, are generally much more reactive than the alkanes. Strong oxidizers may react vigorously with them. Reducing agents can react exothermically to release gaseous hydrogen. In the presence of various catalysts (such as acids) or initiators, compounds in this class can undergo very exothermic addition polymerization reactions. May react with oxidizing materials. Aluminum borohydride reacts with alkenes and in the presence of oxygen, combustion is initiated even in the absence of moisture.
外观形态Colorless gas

MSDS等安全信息

GHS象形图
GHS符号GHS02 & GHS04;
注释: Flame & Gas cylinder
危险类别Flam. Gas 1A
Press. Gas (Liq.)
易燃液体类别1
警示词Danger(危险)
危险描述H220 |极易燃气体.
H280 |含加压气体;加热可能会爆炸.
H224 |Extremely 易燃液体和蒸气.
防范说明P410+P403-P210-P377-P381-P403
安全声明IDENTIFICATION AND USE: 1-Butene is a colorless gas. It is is used for the production of a wide variety of chemicals in the gasoline and rubber processing areas. Most 1-butene is used as a comonomer for linear low-density polyethylene, which contains up to 10%. However, 1-butene is also used as a comonomer for modifying high-density polyethylene, which contains up to 4%. HUMAN STUDIES: 1-Butene is a simple asphyxiant and may be a CNS depressant in high concentrations. It has a low acute toxicity and is mildly irritating to the eye. On direct eye and skin contact liquid butene can cause burns and frostbite. The treatment of human peripheral blood mononuclear cells (PBMCs) and promyelocytic leukemia cells (HL60) for 24 hr resulted in an increase of DNA damage. HL60 cells were more resistant than PBMCs to the DNA damage. ANIMAL STUDIES: Exposure to 1-butene at target concentrations of 500, 2000, 8000 ppm (approximately 1147, 4589, 18359 mg/cu m) did not induce systemic toxicity in male and female rats exposed for 28 days or in pregnant female rats exposed for 14 days pre-mating, through mating and gestation to day 19. There were no treatment-related effects on the development of pups. As an anesthetic, it is 4.5 times more potent than ethylene. Exposure of mice to concentrations of 15% butene resulted in reversible signs of incoordination, confusion, and hyperexcitability; at 20% deep anesthesia in 8 to 15 min, with subsequent respiratory failure in 2 hr; and at 30% in 2 to 4 min and 40 min, respectively. A concentration of 40% resulted in profound anesthesia in 30 sec, with no CNS symptoms but with death in 10 to 15 min. ECOTOXICITY STUDIES: Tomato: epinasty in petiole: 50,000 ppm, 2 days.

欧盟法规

REACH注册ECHA物质ECHA物质C&L通报REACH预注册

合成工艺路线路线简述

[(E)-But-2-Enyl]-Dipropylborane,甲醇反应生成丁烯的均聚物
参考文献:Mixajlov B. M.; Bubnov Yu. N.; Tsyban A. V.; Bashe K.,Izv. An Cccp. Cep. Xim.,1978,Ho 7,1586-1594
标题:Mixajlov B. M.; Bubnov Yu. N.; Tsyban A. V.; Bashe K.,Izv. An Cccp. Cep. Xim.,1978,Ho 7,1586-1594