divinylbenzene
Sign in to saveAlso known as DVB, divinyl benzene, diethylene benzene, vinylstyrene
Divinylbenzene (DVB) is an organic compound with the chemical formula and structure (a benzene ring with two vinyl groups as substituents). It is related to styrene (vinylbenzene, ) by the addition of a second vinyl group. It is a colorless liquid manufactured by the thermal dehydrogenation of isomeric diethylbenzenes. Under synthesis conditions, o-divinylbenzene converts to naphthalene and thus is not a component of the usual mixtures of DVB.
Wikidata facts
- Mass
- 130.2
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- NIOSH Pocket Guide ID
- 0248
- density
- 0.93
- melting point
- -88
- boiling point
- 392
- vapor pressure
- 0.7
- flash point
- 169
- solubility
- 0.005
- lower flammable limit
- 1.1
- upper flammable limit
- 6.2
- time-weighted average exposure limit
- 50
- Commons category
- Divinylbenzenes
- CXSMILES
- C=C*.c1ccccc1C=C |m:2:3.4.5.6.7|
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3 sectionsContents
- Production and use
- Nomenclature
- References
Divinylbenzene (DVB) is an organic compound with the chemical formula and structure (a benzene ring with two vinyl groups as substituents). It is related to styrene (vinylbenzene, ) by the addition of a second vinyl group. It is a colorless liquid manufactured by the thermal dehydrogenation of isomeric diethylbenzenes. Under synthesis conditions, o-divinylbenzene converts to naphthalene and thus is not a component of the usual mixtures of DVB.
==Production and use== It is produced by dehydrogenation of diethylbenzene: C6H4(C2H5)2 → C6H4(C2H3)2 + 2 H2 Divinylbenzene is usually encountered as a 2:1 mixture of m- and p-divinylbenzene, containing also the corresponding isomers of ethylvinylbenzene.