Authors:
J. Mullens Limburgs Universitair Centrum Department SBG, B 3590 Diepenbeek, Belgium

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G. Reggers Limburgs Universitair Centrum Department SBG, B 3590 Diepenbeek, Belgium

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M. Ruysen Limburgs Universitair Centrum Department SBG, B 3590 Diepenbeek, Belgium

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R. Carleer Limburgs Universitair Centrum Department SBG, B 3590 Diepenbeek, Belgium

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J. Yperman Limburgs Universitair Centrum Department SBG, B 3590 Diepenbeek, Belgium

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D. Franco Limburgs Universitair Centrum Department SBG, B 3590 Diepenbeek, Belgium

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L. Van Poucke Limburgs Universitair Centrum Department SBG, B 3590 Diepenbeek, Belgium

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Abstract  

The oxidative degradation of HET-acid (1,4,5,6,7,7-hexachlorobicyclo [2.2.1] hept-5-en-2, 3-dicarboxylic acid) is studied by the combination of TG, FTIR, MS and GC-MS. The gases evolved during the decomposition of this flame retardant are investigated on-line by FTIR and by MS. Simultaneously the evolved gases are collected by an adsorbent and, after the thermal experiment, desorbed to release the volatile products for identification using GC-MS. The combination of these techniques offers the unambiguous identification of the evolved products as a function of temperature. The main identified products are CO2, H2O, Cl2, HCl, C2Cl4, maleic acid anhydride, HET-acid anhydride, chlorinated cyclic hydrocarbons and chlorinated unsaturated linear hydrocarbons.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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