cis-2-ペンテン 化学特性,用途語,生産方法
外観
無色～うすい黄色、液体
用途
有機合成原料。
化学的特性
colourless liquid
物理的性質
Clear, colorless, flammable liquid with a disagreeable odor.
使用
Polymerization inhibitor; organic synthesis.
一般的な説明
A colorless liquid with a hydrocarbon odor. Usually found as a technical grade consisting of a mixture of isomers. Insoluble in water. Used as a solvent in organic synthesis and as a polymerization inhibitor.
空気と水の反応
Highly flammable. Insoluble in water.
反応プロフィール
The unsaturated aliphatic hydrocarbons, such as 2-PENTENE, 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.
環境運命予測
Photolytic. The rate constant for the reaction of cis-2-pentene and OH radicals in the
atmosphere at 300 K is 3.9 x 10
-13 cm
3/moleculesec (Hendry and Kenley, 1979). Atkinson (1990)
reported a rate constant of 6.50 x 10
-11 cm
3/moleculesec for the same reaction.
Chemical/Physical. Complete combustion in air yields carbon dioxide and water.
純化方法
Dry it with sodium wire and fractionally distil it, or purify it by azeotropic distillation with MeOH, followed by washing out the MeOH with water, drying and distilling. Also purify it by chromatography through silica gel and alumina [Klassen & Ross J Phys Chem 91 3668 1987]. [Beilstein 1 IV 814.]
cis-2-ペンテン 上流と下流の製品情報
原材料
準備製品