Винилбромид химические свойства, назначение, производство
Химические свойства
Vinyl bromide is a colorless gas or liquid at
low ambient temperature. Pleasant odor. Shipped as a liquefied
compressed gas with 0.1% phenol added to prevent
polymerization.
Использование
Vinyl bromide is used as a fire retardant inplastics.
Методы производства
VB can be produced by the catalytic addition of hydrogen
bromide to acetylene in the presence of mercury and
copper halide catalysts or by partial dehydrobromination
of ethylene dibromide with alcoholic potassium
hydroxide.
Общее описание
Boiling point 60°F. Liquid at low ambient temperatures. Specific gravity 1.51. A suspected carcinogen. Under exposure to fire or heat containers may rupture violently and rocket.
Реакции воздуха и воды
Highly flammable, with air forms peroxides
Профиль реактивности
VINYL BROMIDE is a light sensitive, peroxidizable monomer may initiate exothermic polymerization of the bulk material [Handling Chemicals Safely 1980.. p. 958]. Vinyl bromide will react violently with oxidants.
Угроза здоровью
Inhalation of this gas at high concentrationscan produce anesthesia and kidney damage.Exposure to 2.5% concentration in air pro duced anesthetic effects in rats. A 15-minuteexposure to 10% concentration was fatal torats (ACGIH 1986). Kidney injury occurredat a 5% exposure level. Human toxicity datafor this compound are not available. The liq uid is mild to moderately irritating to theeyes.
Vinyl bromide manifested carcinogenicproperties in laboratory animals. It producedliver and blood tumors in rats and mice.Its cancer-causing effects in humans arenot known. However, on the basis of itssimilarity to vinyl chloride, it is suspectedto be a human carcinogen.
Пожароопасность
EXTREMELY FLAMMABLE. Will be easily ignited by heat, sparks or flames. Will form explosive mixtures with air. Silane will ignite spontaneously in air. May polymerize explosively when heated or involved in a fire. Vapors from liquefied gas are initially heavier than air and spread along ground. Vapors may travel to source of ignition and flash back. Cylinders exposed to fire may vent and release flammable gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket.
Профиль безопасности
Confirmed carcinogen
with experimental carcinogenic,
neoplastigenic, and tumorigenic data.
Moderately toxic by ingestion. Mutation data
reported. A very dangerous fire hazard when
exposed to heat or flame. Can react violently
with oxidzing materials. May polymerize in
sunlight. To fight fire, use CO2, dry
chemical, or water spray. When heated to
decomposition it emits toxic fumes of Br-.
See also BROMIDES and VINYL
CHLORIDE.
Возможный контакт
Vinyl bromide is used as an intermediate
in organic synthesis and for the preparation of plastics
by polymerization and copolymerization; as a comonomer
with acrylonitrile and other vinyl monomers in modacrylic
fibers; in the production of flame-retardant synthetic fibers.
Канцерогенность
Vinyl bromide is reasonably anticipated to be a human carcinogenbased on sufficient evidence of carcinogenicity from studies in experimental animals.
Перевозки
UN1085 Vinyl bromide, stabilized, Hazard
Class: 2.1; Labels: 2.1-Flammable 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.
Несовместимости
Vinyl bromide is a dangerous chemically
unstable compound that may polymerize spontaneously in
heat, sunlight and possibly exposure to UV. Dangerously
reactive with oxidizers (chlorates, nitrates, peroxides, permanganates,
perchlorates, chlorine, bromine, fluorine, etc.);
contact may cause fires or explosions. Keep away from
alkaline materials, acetylene, strong acids, strong bases,
copper compounds. Add 0.1% phenol to gas to prevent
polymerization.
Утилизация отходов
Return refillable compressed
gas cylinders to supplier. Nonrefillable cylinders should be
disposed of in accordance with local, state and federal regulations.
Allow remaining gas to vent slowly into atmosphere
in an unconfined area or exhaust hood. Refillabletype
cylinders should be returned to original supplier with
any valve caps and outlet plugs secured and valve protection
caps in place.
Винилбромид препаратная продукция и сырье
сырьё
препарат
1-Этенил-1,2,3,4-тетрагидро-6-метокси-1-нафталенол
17-Ethinyl-3,17-dihydroxy-18-methylestra-2,5(10)-diene3-methylether
Rimantadine hydrochloride
Трибутил(винил)олово
13-Ethyl-17-hydroxy-18,19-dinorpregn-5(10)-en-20-yn-3-one
3-Methoxy-18-methylestra-1,3,5(10),8-tetraen-17-ethylene ketal
Винилмагния бромид
Монтелукаст
17-Ethinyl-17-hydroxy-18-methylestra-5(10),9(11)-dien-3-one-3-ethylene ketal
3-Methoxy-18-methylestra-2,5(10)dien-17-one 17-ethylene ketal
17-Ethynyl-18-methylestra-5(10),9(11)-dien-17-ol-3-one
Диэтил винилфосфона
4-фторстирол
Ацетилендикарбонова кислота
Nerolidol
ВИНИЛЛИТИЙ
бромэтин
2,2-DIBROMOETHANOL
1-пентен-3-ин