Registration Dossier
Registration Dossier
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EC number: 921-836-0 | CAS number: 1190402-12-0
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
< 1 mg/L
Key value for chemical safety assessment
Additional information
The water solubility of the substance mixed esters of fatty acid C16 and C16-C18 unsatd. with adipic acid and pentaerythritol was determined by gravimetric analysis according to NF T 20-046.
In comparison to solubility (< 1 mg/L) of the structurally similar substance fatty acids, C16-18 and C18-unsatd., mixed esters with adipic acid and trimethylolpropane (CAS 91001-61-5) the water solubility is quite high.
This might due to a higher weight caused by impurities or other source of error within the gravimetric analysis or to a relative relevant amount of not-reacted adipic acid which is more soluble than the reacted esters.
Since the pH is relatively low as well, this indicates that not-reacted adipic acid or pentaerythritol is still present.
The water solubility (1.081E-6 – 1.194E-6 mg/L at 25 °C) determined by QSAR calculation with WATERNT v1.01 is slightly increased compared to the water solubility (8,07E-7 -9.33E-7 mg/L at 25 °C) of the fatty acids, C16-18 and C18-unsatd., mixed esters with adipic acid and trimethylolpropane but with a quite better agreement than the measured value; therefore the water solubility of the substance is deduced to be < 1 mg/L.
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