Kinetics of Thermal and Photolytic Segregation of Hexabromocyclododecane in Backcoated Textile Samples
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Keywords

Keywords: Hexabromocyclododecane; Kinetics; Thermal segregation; Photolytic segregation.

How to Cite

Raed Ghanem*. (2009). Kinetics of Thermal and Photolytic Segregation of Hexabromocyclododecane in Backcoated Textile Samples. Jordan Journal of Chemistry (JJC), 4(2), 171-181. Retrieved from https://jjc.yu.edu.jo/index.php/jjc/article/view/485

Abstract

Abstract

Kinetics of the thermal and photolytic segregation of Hexabromocyclododecane (HBCD) was studied using HPLC. Samples were found to lose some of their content of HBCD due to thermal or UV exposure. Analysis of thermally and UV aged samples time reveals that at the end of ageing periods the samples lost due to ageing  at 25 oC, 60 oC,  90oC and due to UV exposure an amount of ~7.3%, 20% , 41 % and 23 % wt/wt of the amount of HBCD originally present in the samples, respectively. The thermal and photolytic release was found to follow first order kinetics with rate constants estimated to be 3.6x10-3, 3.96x10-3, 2.34x10-2 and 3.5x10-2 day-1, respectively. Ageing of the textile samples was found to enhance the release of the total HBCD from the back coated textile without affecting the isomerization ratio of HBCD isomers.

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