Temperature dependent properties of environmentally important synthetic musks |
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Authors: | Paasivirta Jaakko Sinkkonen Seija Rantalainen Anna-Lea Broman Dag Zebühr Yngve |
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Institution: | Dept of Chemistry, University of Jyv?skyl?, P.O. Box 35, FIN-40351 Jyv?skyl?, Finland. ipta@cc.jyu.fi |
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Abstract: | Environmental fate determining physical properties including their temperature dependence for five nitro musks and for seven polycyclic musks were estimated. The properties evaluated were vapor pressure in a solid and liquid state (PS and PL), solubility in water (S), Henry's law coefficient (H = PL/S) and log octanol-water partition coefficient (log KOW). Gas chromatography for starting values of vapor pressure estimation and HPLC experiments at 5-20 degrees C for comparison of the theoretical versus experimental solubilities in water were performed. The values of temperature (T) dependence coefficients (Ai and Bi) in equations: log (Property)i = Ai - Bi/T were determined. Values of properties were compared with literature-based data, and an example of their use in environmental hazard estimation by fate modeling was given. |
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