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EC number: 205-582-1
CAS number: 143-07-7
LogKoc values increase with increasing chain length indicated by estimated Koc values ranging from 1.02 for azelaic acid (C9) up to 4.71 for stearic acid (C18).
Koc values were calculated with the US
EPA EPI suite interface using QSAR/QSPR predictions (KOCWIN v. 2.00)
with input of log Kow-values.The estimated Koc
values increase with increasing chain length and decreasing water
solubility indicated by Koc values ranging from 10.57 for azelaic acid
(C9) to 51,050 for stearic acid (C18). According to the Guidance
Document Chapter R.7a, substances with Koc values below 500–1,000 L/kg
are generally unlikely to adsorb to sediment. Thus, remarkable
adsorption potential is predicted for fatty acids starting at a chain
length of 12 and higher.
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