4-tert-ブチルピロカテコール 化学特性,用途語,生産方法
外観
白色～うすい褐色, 結晶～粉末又は柱状
溶解性
水に難溶。エタノール, アセトンに易溶。エタノール及びアセトンに溶けやすく、水に極めて溶けにくい。
用途
酸化防止剤、安定剤、モノマーの重合防止剤。
用途
重合抑制剤,酸化防止剤 (NITE CHRIP)
使用上の注意
不活性ガス封入
説明
Para-tertiary butyl catechol is specially prepared by
reacting the impure catechol fraction with tertiary
butyl alcohol. Used for its various properties (inhibition
of polymerization and as an antioxidizing agent)
in the manufacture of rubber, plastics and paints, in
the preparation of petrolatum products, and as an
antioxidant in oils, it may induce vitiligo.
化学的特性
white to cream flakes
使用
Polymerization inhibitor for styrene-butadiene and other olefins.
Inhibitor-remover packings and ready-to-use, disposable prepacked columns offer a quick and convenient means of removing small amounts of inhibitors which are added to reagents or solvents that would otherwise be unstable (e.g., they may polymerize, oxidize or darken) on storage.
The inhibitor removers are useful in applications which require that the stabilizer or inhibitor [i.e., hydroquinone (HQ), hydroquinone monomethyl ether (MEHQ, 4-methoxyphenol) or 4-tert-butylcatechol (TBC)] be removed prior to use.
一般的な説明
4-
tert-Butylcatechol,in the presence of O
2 catalyzed by tyrosinase, yields 4-
tert-butyl-
o-benzoquinone. Electrochemical oxidation of 4-
tert-Butylcatechol in the presence of 4-hydroxycoumarin as nucleophile has been studied using cyclic voltammetry and controlled-potential coulometry. It undergoes electrochemical trimerization via anodic oxidation and mechanism of trimerization has been studied using cyclic voltammetry and controlled-potential coulometry.
危険性
Toxic by ingestion and skin absorption.
接触アレルゲン
p-tert-Butyl catechol is specially prepared by reacting
the impure catechol fraction with tertiary butyl alcohol.
It is used for its various properties (inhibitor of
polymerization and antioxidizing agent) in the manufacture
of rubber, plastics, and paints, in the preparation
of petrolatum products, and as an antioxidant in
oils. It may induce vitiligo.
安全性プロファイル
A poison by
intravenous route. Moderately toxic by
ingestion and skin absorption. A severe skin
and eye irritant. Mutation data reported.
Combustible when exposed to heat or
flame. To fight fire, use Con, dry chemical,
fog, mist. When heated to decomposition it
emits acrid and irritating fumes
純化方法
Distil it in a vacuum, then recrystallise it from pentane or pet ether (or *C6H6). [Beilstein
4-tert-ブチルピロカテコール 上流と下流の製品情報
原材料
準備製品