Registration Dossier
Registration Dossier
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EC number: 700-604-0 | CAS number: 947701-81-7
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
Several water solubility studies have been undertaken. The key study is the study which was undertaken on the test material UC (EC 700-604-0) and according to OECD guidelines. The key study produced a result of 8.72E-07 g/l . We have supporting data too which shows the two surrogate materials (EHMC and UMC) showing very similar properties, as all three substances are insoluble in water. Looking at the results of all three materials, UC is the least soluble in water, this is probably due to the absence of a methoxy group attached to a benzene ring which is present in the two remaining structures.
Key value for chemical safety assessment
- Water solubility:
- 0.04 mg/L
- at the temperature of:
- 20 °C
Additional information
The water solubility for the test material UC (EC 700-604-0) was investigated using OECD guidelines, the substance was determined to be insoluble in water with a reading of 8.72E-07 g/l.
The water solubility of EHMC was determined without the aid of a co-solvent or auxilliary solvent in the test media used for the Daphnia magna 21 -day reproduction toxicity test. The use of solvents, in some cases, has been recognized to contribute to ecotoxicological effects which are not found when test organisms are exposed to the substance without the use of an auxilliary solvent. Using a slow-stir method and without auxilliary solvent, the concentration of EHMC ranged from 0.0000427 to 0.000151 mg/l for filtered samples and 0.000717 to 0.00182 mg/l for centrifuged samples.
The water solubility was also determined for UMC, the surrogate material was tested using the EU Method A6 and produced result of
1.71 x 10-4g/l.
Looking at the results of all three materials, UC is the least soluble in water, this is probably due to the absence of a methoxy group attached to a benzene ring which is present in the two remaining structures.
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