2009年2月24日 星期二

Dibenzothiophene

Dibenzothiophene
From Wikipedia, the free encyclopedia
Jump to: navigation, search
Dibenzothiophene

IUPAC name Dibenzothiophene
Other names Diphenylene sulfide

Identifiers
CAS number 132-65-0
RTECS number HQ3490550

Properties
Molecular formula C12H8S
Molar mass 184.26 g/mol
Appearance Colourless crystals
Density ? g/cm3
Melting point 97-100 °C(lit.)
Boiling point 332-333 °C
Solubility in water insol.
Solubility in other solvents benzene and related

Hazards
Main hazards flammable
R-phrases 22
S-phrases 36

Related compounds
Related compounds Thiopheneanthracenebenzothiophene

Except where noted otherwise, data are given formaterials in their standard state(at 25 °C, 100 kPa)Infobox references


Dibenzothiophene is the organic compound consisting of two benzene rings fused to a central thiophene ring. This tricyclic heterocycle, and especially its alkyl substituted derivatives occur widely in heavier fractions of petroleum.
Dibenzothiophene is prepared by the reaction of biphenyl with sulfur dichloride in the presence of aluminium trichloride.

http://en.wikipedia.org/wiki/Dibenzothiophene

沒有留言: