Original scientific paper

Thermal Decomposition of Tetrabromoethylcyclohexane

Anđa Alajbeg ; INA-R & D, Proleterskih brigada 78, 41000 Zagreb, Yugoslavia

Abstract

Tetrabromoethyleyclohexane (TBECH),which serves as a fire
retardant agent, was decomposed in defined and controlled conditions
simulating some characteristic temperature and atmosphere
conditions of fire development. Under the experimental conditions TBECH converted into a large portion of gases, some volatile condensable products and very little residue. The gases consisted mainly of HBr while light hydrocarbons, light bromine-containing hydrocarbons and C02 were in low concentrations.
Among the volatile-condensable products, twenty one components
were identified by GC-MS. They were cyclohexadiene, aromaties predominated by benzene and styrene and bromine-containing aromatics, containing one or two bromine atoms. Among the bromine-containing aromatics, the monobromine ones made up a fair concentration, especially bromoethylbenzene.
As regards the yield of decomposition products, dehydrobromination
highly predominated. High temperatures eaused some additional fragmentation by cleavage of C-C bonds. Secondary reactions of decomposition fragments are also stated.

Keywords

Hrčak ID:

175869

URI

https://hrcak.srce.hr/175869

Publication date:

28.4.1988.

Visits: 610 *