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Physical & Chemical properties

Water solubility

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Description of key information

experimental value: < 0.1 mg/L at 20 °C, pH=6.7 (EU Method A.6, column elution method)
estimated by calculation (based on fragments, weight-averaged): 0.0153 mg/L at 25 °C (EPIsuite v4.10, WATERNT v 1.01 est)

Key value for chemical safety assessment

Water solubility:
0.015 mg/L
at the temperature of:
25 °C

Additional information

The water solubility of the substance Octadecan-1-ol, ethoxylated, < 2.5 EO (CAS 9005-00-9) was determined with the column elution method according to EU Method A.6. Prior to sample analysis with HPLC-ELSD, solid phase extraction was performed in order to increase sensitivity of detection.  

The water solubility of the substance was also estimated through calculation based on EPIsuite v 4.10, WATERNT v 1.01 est. The water solubility values for (possible) individual constituents of the substance was estimated based on fragments and a weighting based on normalized composition was applied to derive a water solubility value for the whole substance.

Since the experimentally derived value is not well defined (< 0.1 mg/L) weight-averaged calculated value is used to derive the the key value for chemical safety assessment.