Registration Dossier
Registration Dossier
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EC number: 403-700-8 | CAS number: 2687-94-7 NOP; SURFADONE LP-100 SURFACTANT
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
Significant adsorption to solid soil phase is not expected.
Key value for chemical safety assessment
- Koc at 20 °C:
- 309
Additional information
A adsorption/desorption study (Battelle 1991) was conducted according to EPA guideline subdivision N, Section 163-1. This study was selected as key study.
This study showed that the substance was readily adsorbed and readily desorbed to the four soils tested: loam, sandy loam, clay loam, and silt loam. Based on adsorption, the value of Koc is 303 for loamy soil. For sandy loam soil , the value of Koc is 202. For clay loam, the value of Koc is 278. For silt loam soil , the value of Koc is 192.
The range of Koc values for adsorption and desorption is 185 to 433 L/kg. The arithmetic mean value of 309 L/kg was used for the risk assessment.
It can be concluded that significant adsorption to solid soil is not expected.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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