メタクリル酸ブチル 化学特性,用途語,生産方法
外観
無色澄明の液体
定義
本品は、メタクリル酸とブタノール(*)のエステルであり、次の化学式で表される。
参照表示名称：ブタノール
溶解性
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。
用途
繊維処理剤、塗料、成形材料
化粧品の成分用途
人工爪剤、香料
使用上の注意
安定剤(重合禁止剤) : ヒドロキノン約0.01%添加。
説明
Butyl methacrylate (BMA) is the organic compound with the formula C4H9O2CC(CH3)=CH2. A colorless liquid, it is a common monomer for the preparation of methacrylate polymers. It is typically polymerized under free-radical conditions.
Butyl methacrylate is a versatile, plasticizing methacrylate monomer that acts as an important building block in many copolymer compositions. Serving as a base for acrylic resins, BMA provides exceptional weather resistance, high gloss, color retention, and durability. BMA contributes more intermediate glass transition and hardness values, with a glass transition temperature (Tg) of 20 °C.
化学的特性
Butyl methacrylate is a flammable, colorless
liquid with a mild odor.
使用
n-Butyl methacrylate is used as a monomer for resins,
solvent coatings, adhesives, oil additives, emulsions for
textiles, leather, and paper finishing and in the manufacture
of contact lenses . It is also used in dental resins,
oil dispersible pesticides, and acrylic surface coatings
and as copolymers, for example, in paraffin embedding
media .
調製方法
n-Butyl methacrylate is produced by the reaction of
methacrylic acid or methyl methacrylate with butanol .
一般的な説明
A clear colorless liquid. Flash point 130°F. Less dense (7.5 lb / gal) than water and insoluble in water. Hence floats on water. Vapors heavier than air. Used to make resins adhesives, and oil additives.
空気と水の反応
Flammable. Sensitive to moisture. Insoluble in water.
反応プロフィール
Butyl methacrylate reacts exothermically with acids. Reacts with oxidizing agents. Strong oxidizing acids may cause a reaction that is sufficiently exothermic to ignite the reaction products. Heat is generated with caustic solutions. Generates flammable hydrogen with alkali metals and hydrides. Polymerizes easily .
危険性
Toxic by ingestion. Moderate fire risk.
健康ハザード
Inhalation may cause nausea because of offensive odor. Contact with liquid causes irritation of eyes and mild irritation of skin. Ingestion causes irritation of mouth and stomach.
火災危険
Behavior in Fire: Containers may explode due to polymerization.
化学反応性
Reactivity with Water No reaction; Reactivity with Common Materials: No reactions; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: May occur upon exposure to heat; Inhibitor of Polymerization: 9-15 ppm monomethyl ether of hydroquinone; 90-120 ppm hydroquinone.
安全性プロファイル
Moderately toxic by
intraperitoneal route. Mddly toxic by
ingestion, inhalation, and skin contact. An
experimental teratogen. Experimental
reproductive effects. A skin irritant.
Flammable liquid when exposed to heat or
flame. Explosive in the form of vapor when exposed to heat or flame. Violent
polymerization can be caused by heat,
moisture, oxidizers. To fight fire, use foam,
dry chemical, CO2. When heated to
decomposition it emits acrid smoke and
irritating fumes.
職業ばく露
Forms an explosive mixture with air.
Unless inhibitor is maintained at the proper level, oxidizers,
heat, ultraviolet light, contamination, or moisture may
cause polymerization. May accumulate static electrical
charges and cause ignition of its vapors.
輸送方法
UN2227 Butyl methacrylate, stabilized, Hazard
Class: 3; Labels: 3—Flammable liquid.
純化方法
Purify as for butyl acrylate. [Beilstein 2 IV 1525.]
不和合性
Forms an explosive mixture with air.
Unless inhibitor is maintained at the proper level, oxidizers,
heat, ultraviolet light, contamination, or moisture may
cause polymerization. May accumulate static electrical
charges and cause ignition of its vapors
廃棄物の処理
Dissolve or mix the material
with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal,
state, and local environmental regulations must be
observed.
メタクリル酸ブチル 上流と下流の製品情報
原材料
準備製品