Solubility studies of organic flame retardants in supercritical CO2

Solubility measurements and calculations were performed for two mainly used name retardants, for hexabromcyclododecane and for tetrabrombisphenyl-A. For the solubility studies different pressures (200, 300, 400, and 500 bar) and temperatures (25, 40, 60, 80, and 100 degreesC) were investigated. The experimental data were fitted by means of the Chrastil equation. With this rather simple model the solubility behavior of the solid substances in supercritical carbon dioxide can be described with high accuracy.