Bromethylen Chemische Eigenschaften,Einsatz,Produktion Methoden
ERSCHEINUNGSBILD
KOMPRIMIERTES FLüSSIGGAS MIT STECHENDEM GERUCH.
PHYSIKALISCHE GEFAHREN
Die Dämpfe sind schwerer als Luft.
CHEMISCHE GEFAHREN
Reagiert sehr heftig mit Oxidationsmitteln. Zersetzung beim Verbrennen unter Bildung giftiger Gase. Polymerisation unter Einfluss von Hitzeoder Licht.
ARBEITSPLATZGRENZWERTE
TLV: 0.5 ppm (als TWA); Krebskategorie A2 (Verdacht auf krebserzeugende Wirkung beim Menschen); (ACGIH 2005).
MAK nicht festgelegt (DFG 2005).
AUFNAHMEWEGE
Aufnahme in den Körper durch Inhalation.
INHALATIONSGEFAHREN
Eine gesundheitsschädliche Konzentration des Gases in der Luft wird beim Entweichen aus dem Behälter sehr schnell erreicht.
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION: Die Substanz reizt die Augen. Möglich sind Auswirkungen auf das Zentralnervensystem. Schnelle Verdampfung kann zu Erfrierungen führen.
WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION
Wahrscheinlich krebserzeugend für den Menschen.
LECKAGE
Gefahrenbereich verlassen! Belüftung. Zündquellen entfernen. Chemikalienschutzanzug mit umgebungsluftunabhängigem Atemschutzgerät.
R-Sätze Betriebsanweisung:
R45:Kann Krebs erzeugen.
R12:Hochentzündlich.
R19:Kann explosionsfähige Peroxide bilden.
R36/37:Reizt die Augen und die Atmungsorgane.
S-Sätze Betriebsanweisung:
S53:Exposition vermeiden - vor Gebrauch besondere Anweisungen einholen.
S9:Behälter an einem gut gelüfteten Ort aufbewahren.
S16:Von Zündquellen fernhalten - Nicht rauchen.
S29:Nicht in die Kanalisation gelangen lassen.
S33:Maßnahmen gegen elektrostatische Aufladungen treffen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
Chemische Eigenschaften
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.
Verwenden
Vinyl bromide is used as a fire retardant inplastics.
Vorbereitung Methode
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.
Allgemeine Beschreibung
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.
Air & Water Reaktionen
Highly flammable, with air forms peroxides
Reaktivität anzeigen
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.
Health Hazard
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.
Brandgefahr
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.
Sicherheitsprofil
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.
mögliche Exposition
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.
Carcinogenicity
Vinyl bromide is reasonably anticipated to be a human carcinogenbased on sufficient evidence of carcinogenicity from studies in experimental animals.
Versand/Shipping
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.
Inkompatibilitäten
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.
Waste disposal
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.
Bromethylen Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
1-Ethenyl-1,2,3,4-tetrahydro-6-methoxy-1-naphthalenol
17-Ethinyl-3,17-dihydroxy-18-methylestra-2,5(10)-diene3-methylether
Rimantadine hydrochloride
Tributylvinylstannan
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
Bromvinylmagnesium
Montelukast
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
Diethylvinylphosphonat
4-Fluorstyrol
Butindisure
(E)-3,7,11-Trimethyldodeca-1,6,10-trien-3-ol
Vinyllithium
bromoethyne
2,2-DIBROMOETHANOL
pent-1-en-3-yne
