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Physical & Chemical properties

Water solubility

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Description of key information

A surrogate Zinc Dithiophosphate (224-235-5) was read across to the substance identified in Section 1 of this record.  We expect that the water solubility of this substance would be less than 1.0 mg/L.

Key value for chemical safety assessment

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

Additional information

EC No. 224 -235 -5 was used as a Read Across surrogate for the substance being registered, zinc bis[O,O-bis(4-dodecylphenyl) dithiophosphate], EC No 259-048-8.

EC No. 224 -235 -5 is a di-C8-alkyl dithiophosphoric acid zinc salt whereas EC No. 259-048-8 is a di-C12 -alkaryl dithiophosphoric acid zinc salt. The di-C8 alkyl derivative exhibited a water solubility of 3.0 mg/L. We would therefore expect that the di-C12 alkaryl derivative exhibit a much lower water solubility that is less than 1 mg/L based upon the enhanced lipophilicity of this particular zinc salt.