Divinylbenzene

Divinylbenzene
Skeletal formulae of both isomers
Ball-and-stick model of m-Divinylbenzene
Ball-and-stick model of m-Divinylbenzene
Ball-and-stick model of p-Divinylbenzene
Ball-and-stick model of p-Divinylbenzene
Names
Other names
Diethylene benzene, DVB, Vinylstyrene
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.013.932 Edit this at Wikidata
EC Number
  • 215-325-5
  • m-: 203-595-7
  • p-: 203-266-8
RTECS number
  • CZ9370000
  • m-: CZ9450000
UNII
UN number 3252 3254 (stabilized chemical)
  • p-: InChI=1S/C10H10/c1-3-9-5-7-10(4-2)8-6-9/h3-8H,1-2H2
    Key: WEERVPDNCOGWJF-UHFFFAOYSA-N
  • C=CC1=CC=CC=C1C=C
  • m-: C=CC1=CC(=CC=C1)C=C
  • p-: C=CC1=CC=C(C=C1)C=C
Properties
C10H10
Molar mass 130.190 g·mol−1
Appearance pale, straw-colored liquid[1]
Density 0.914 g/mL
Melting point −66.9 to −52 °C (−88.4 to −61.6 °F; 206.2 to 221.2 K)
Boiling point 195 °C (383 °F; 468 K)
0.005% (20°C)[1]
Solubility in other solvents Soluble in ethanol and ether
Vapor pressure 0.7 mmHg (20°C)[1]
Hazards
Flash point 76 °C (169 °F; 349 K)
Explosive limits 1.1%-6.2%[1]
NIOSH (US health exposure limits):
PEL (Permissible)
 none[1]
REL (Recommended)
 TWA 10 ppm (50 mg/m3)[1]
IDLH (Immediate danger)
 N.D.[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Divinylbenzene (DVB) is an organic compound with the chemical formula C6H4(CH=CH2)2 and structure H2C=CH−C6H4−HC=CH2 (a benzene ring with two vinyl groups as substituents). It is related to styrene (vinylbenzene, C6H5−CH=CH2) by the addition of a second vinyl group.[2] 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.[3]

  1. ^ a b c d e f g NIOSH Pocket Guide to Chemical Hazards. "#0248". National Institute for Occupational Safety and Health (NIOSH).
  2. ^ CRC Handbook of Chemistry and Physics 65Th Ed.
  3. ^ Denis H. James William M. Castor, "Styrene" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2005. doi:10.1002/14356007.a25_329.pub2.