1-オクテン 化学特性,用途語,生産方法
外観
無色澄明の液体
溶解性
水に不溶。エタノール、エーテルに可溶。水に不溶。エタノール及びアセトンに溶けやすく、水にほとんど溶けない。
用途
有機合成原料、可塑剤、界面活性剤
化学的特性
colourless liquid
物理的性質
Clear, colorless, flammable liquid with a mild but unpleasant hydrocarbon odor. Based on a
triangle bag odor method, an odor threshold concentration of 1.0 ppb
v was reported by Nagata and
Takeuchi (1990).
使用
1-Octene acts as a comonomer used in the preparation of polyethylene, especially high-density polyethylene (HDPE) and linear low-density polyethylene(LLDPE) resins. It is also used in organic synthesis, surfactants and plasticizers. Further, it is used in process regulators and viscosity adjustors. In addition to this, it is used in the preparation of linear aldehyde through the oxo synthesis (hydroformylation) to get the nonanal.
定義
ChEBI: An octene with an unsaturation C-1.
一般的な説明
A colorless liquid. Flash point 70°F. Insoluble in water and less dense (at about 6 lb / gal) than water. Hence floats on water. Vapors are heavier than air and may settle in depressions. Reported to biodegrade very slowly. Used in organic synthesis, surfactants, and plasticizers.
空気と水の反応
Highly flammable. Insoluble in water.
反応プロフィール
1-OCTENE may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. In the presence of various catalysts (such as acids) or initiators, may undergo exothermic addition polymerization reactions.
健康ハザード
Generally low toxicity. Mildly anesthetic at high vapor concentrations. May irritate eyes.
環境運命予測
Biological. Biooxidation of 1-octene may occur yielding 7-octen-1-ol, which may oxidize to 7-
octenoic acid (Dugan, 1972).
Photolytic. Atkinson and Carter (1984) reported a rate constant of 8.1 x 10
-18 cm
3/molecule?sec
for the reaction of 1-octene and OH radicals in the atmosphere.
Chemical/Physical. The reaction of ozone and OH radicals with 1-octene was studied in a
flexible outdoor Teflon chamber (Paulson and Seinfeld, 1992). 1-Octene reacted with ozone
producing heptanal, a thermally stabilized C7 biradical, and hexane at yields of 80, 10, and 1%,
respectively. With OH radicals, only 15% of 1-octene was converted to heptanal. In both
reactions, the remaining compounds were tentatively identified as alkyl nitrates (Paulson and
Seinfeld, 1977). Grosjean et al. (1996) investigated the atmospheric chemistry of 1-octene with
ozone and an ozone-nitrogen oxide mixture under ambient conditions. The reaction of 1-octene
and ozone in the dark yielded formaldehyde, hexanal, heptanal, cyclohexanone, and a compound
tentatively identified as 2-oxoheptanal. The sunlight irradiation of 1-octene with ozone-nitrogen
oxide yielded the following carbonyls: formaldehyde, acetaldehyde, propanal, 2-butanone,
butanal, pentanal, glyoxal, hexanal, heptanal, and pentanal.
Chemical/Physical. Complete combustion in air yields carbon dioxide and water.
純化方法
Distil 1-octene under nitrogen from sodium which removes water and peroxides. Peroxides can also be removed by percolation through dried, acid washed, alumina. Store it under N2, or Ar in the dark. [Strukul & Michelin J Am Chem Soc 107 7563 1985, Beilstein 1 H 221, 1 II 199, 1 IV 874.]
1-オクテン 上流と下流の製品情報
原材料
準備製品