トリフルオロメチルブロミド 化学特性,用途語,生産方法
用途
半導体ドライエッチング、航空機 、コンピューター室等の消火剤、冷媒、エアゾール噴射剤、プラスチックフォーム発泡剤
化学的特性
Trifluorobromomethane is a colorless gas with
a slight ethereal odor. Shipped as a liquefied compressed
gas.
使用
Used as fire extinguishing agent for oil, electrical equipment, organic solvent, natural gas and a variety of organics, especially for important military and civilian sites.
一般的な説明
A colorless, odorless gas at room conditions Shipped as a liquid confined under its own vapor pressure. Noncombustible. Nontoxic but can asphyxiate by the displacement of air. Contact with the unconfined liquid can cause frostbite by evaporative cooling. Exposure of the container to prolonged heat or fire can cause BROMOTRIFLUOROMETHANE to rupture violently and rocket.
空気と水の反応
Slightly soluble in water.
反応プロフィール
BROMOTRIFLUOROMETHANE may react with aluminum to produce substantial heat. Other halogenated hydrocarbons, such as fluorotrichloromethane, dichlorodifluoromethane, chlorodifluoromethane, tetrafluoromethane produce sufficient heat in this way to melt aluminum pieces. The vigor of the reaction appears to depend on the degree of fluorination and the vapor pressure [Chem. Eng. News 39(27):44 1961].
健康ハザード
Vapors may cause dizziness or asphyxiation without warning. Vapors from liquefied gas are initially heavier than air and spread along ground. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire may produce irritating, corrosive and/or toxic gases.
火災危険
Some may burn but none ignite readily. Containers may explode when heated. Ruptured cylinders may rocket.
安全性プロファイル
Wildly toxic by
inhalation. Incompatible with aluminum.
When heated to decomposition it emits
toxic fumes of Fand Br-. See also
BROMIDES and FLUORIDES.
職業ばく露
This material is used as a fire
extinguishing agent, a chemical intermediate, and as a
refrigerant.
輸送方法
UN1009 Bromotrifluoromethane or Refrigerant
gas, R-13B, Hazard Class: 2.2; Labels: 2.2-Nonflammable
gas. Cylinders must be transported in a secure upright position,
in a well-ventilated truck. Protect cylinder and labels
from physical damage. The owner of the compressed gas
cylinder is the only entity allowed by federal law (49CFR)
to transport and refill them. It is a violation of transportation
regulations to refill compressed gas cylinders without
the express written permission of the owner.
純化方法
Purify the gas by passing it through a tube containing P2O5 on glass wool into a vacuum system where it is frozen out in a quartz tube and degassed by a cycles of freezing, evacuating and thawing. [Beilstein 1 III 83, 1 IV 73.]
不和合性
Keep away from chemically active
metals, such as calcium, powdered aluminum; zinc, magnesium.
Attacks some plastics, rubber, and coatings.
廃棄物の処理
Return refillable compressed
gas cylinders to supplier. Incineration, preferably after mixing
with another combustible fuel. Care must be exercised
to assure complete combustion to prevent the formation of
phosgene. An acid scrubber is necessary to remove the halo
acids produced.
トリフルオロメチルブロミド 上流と下流の製品情報
原材料
準備製品