1,1,2,2-テトラブロモエタン 化学特性,用途語,生産方法
外観
無色～うすい黄色透明液体
用途
主たる用途は溶剤、スチレン樹脂難燃剤、TPA触媒である。
主な用途／役割
ハロゲン化炭化水素系難燃剤、ポリスチレンに3～4％添加で効果大。
解説
テトラブロモエタン，1,1,2,2-テトラブロモエタン(1,1,2,2-tetrabromoethane)：acetylene tetrabromide．CHBr2CHBr2．臭素中にアセチレンを通じると得られる．無色の液体．沸点102 ℃(1.36 kPa)．d2042.9672．n20D1.6379．ヨードホルム臭を有する．有機溶媒，氷酢酸に可溶，水に不溶．難燃剤(発泡スチレン)，油脂，脂肪用溶剤に用いられる．
化学的特性
yellowish heavy liquid with odour of camphor and
物理的性質
Colorless to pale yellow liquid with a pungent odor resembling camphor and iodoform
使用
1,1,2,2-Tetrabromoethane was used to prepare tribromoethene by dehydrohalogenation using sodium hydroxide in methanol.
一般的な説明
A yellowish liquid with a pungent odor, much like camphor. Irritates skin. Ingestion or inhalation may produce irritation or a narcotic effect. Chronic exposure may damage liver. Noncombustible, but decomposes at 374°F, releasing flammable and toxic fumes. Much denser than water. Used as a solvent for fats, oils and waxes.
空気と水の反応
Insoluble in water.
反応プロフィール
1,1,2,2-Tetrabromoethane is incompatible with strong bases and chemically active metals. Incompatible with hot iron, aluminum and zinc in the presence of steam. May react with magnesium. Softens or destroys most plastics and rubber .
健康ハザード
Inhalation of vapors or dust is extremely irritating. May cause burning of eyes and flow of tears. May cause coughing, difficult breathing and nausea. Brief exposure effects last only a few minutes. Exposure in an enclosed area may be very harmful. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may cause pollution.
火災危険
Some of these materials may burn, but none ignite readily. Containers may explode when heated.
安全性プロファイル
Poison by inhalation, ingestion, and intraperitoneal routes. An eye and skin irritant and a narcotic. Questionable carcinogen with experimental neoplastigenic data. Mutation data reported. When heated it emits hghly toxic fumes of carbonyl bromide and Br-. See also ACETYLENE COMPOUNDS and BROMIDES
職業ばく露
Acetylene tetrabromide is used as a solvent; a gauge fluid, and as a refractive index liquid in microscopy.
輸送方法
UN2504 Tetrabromoethane, Hazard Class: 6.1; Labels: 6.1-Poisonous materials
合成方法
アセチレンに二分子の臭素を反応させてから蒸留?精製する
純化方法
Wash it successively with conc H2SO4 (three times) and H2O (three times), dry it with K2CO3 and CaSO4 and distil it in a vacuum or at ~760mm. [Beilstein 1 IV 162.]
不和合性
Chemically active metals (sodium, potassium, magnesium, and zinc), strong caustics; hot iron. Contact with strong oxidizers may cause fire and explosions.
廃棄物の処理
Incineration in admixture with combustible fuel and with scrubber to remove halo acids produced.
1,1,2,2-テトラブロモエタン 上流と下流の製品情報
原材料
準備製品