Registration Dossier
Registration Dossier
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EC number: 273-589-7 | CAS number: 68990-27-2
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
The partition coefficient of balsams, copaiba, sulfurized, mixed with turpentine, gold salts could not be determined due to the low solubility of the test item. However, partition coefficient estimates have been conducted based on the solubility data from the physico-chemical test report for balsams, copaiba, sulfurised, mixed with turpentine, gold salts (Harlan 2012). The Kow of 0.68 (logKow = -0.17) has been calculated as the solubility in octanol divided by the solubility in water.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- -0.17
Additional information
The solubility of the substance in octanol (determined by visual assessment) was stated in the Harlan report, as <9 mg L-1. The solubility of the substance in water has been determined, based on the mean dissolved TOC measurement and the percentage carbon content of the substance, as 13.2 mg L-1.
The octanol water partition coefficient has been estimated by assuming that the identified limit of solubility was achieved in each phase during the test. The partition coefficient is therefore calculated as the solubility in octanol divided by the solubility in water and the resulting Kow value is 0.68 (Log Kow= -0.17).
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