Registration Dossier
Registration Dossier
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EC number: 664-492-4 | CAS number: 742087-49-6
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
To the best of our ability , we stimate that the solubility in water is at least a thousand time that of the solubility in oil, suggesting that the value of Log Pow will be less than -3.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- -3
- at the temperature of:
- 25 °C
Additional information
The molecule is relatively insoluble in oil and very readily soluble in water an is a surfactant.
Attemps to measure the partition coefficient directly have proved to be unsuccessful. To the best of our ability , we estimate that the solubility in water is at least a thousand time that of the solubility in oil, suggesting that the value of Log Pow will be less than -3.
Estimated partition coefficients expressed as Log Pow for modified Alkyl Polyglucoside are reported in NICNAS Full public report STD/1186 are in the folowing range:
Partition Coefficient (n-octanol/water) log Pow = -1.40 to -5.62 for shortest carbon chain with one
or two glucosides.
log Pow = -2.68 to 1.54 for longest carbon chain with one or two glucosides.
As expected , the higher molecular weight variants are more soluble in the oil phase and have higher Logkow values.
Suga Nate 160 , with a C12 fatty alcohol fraction and a short chain sulphonate designed to increase the water solubility is likely to have a lower octanol/water partition coefficient.
This means tha Suga Nate 160 should show less tendency to bioaccumulate in the environment than substances such a sulphonates (and lauryl sulphates and ether sulphates ) , and it is deisgned to replace them.
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