Registration Dossier
Registration Dossier
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EC number: 201-549-0 | CAS number: 84-65-1
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
Estimation of the adsorption coefficient (KOC) on soil and sewage sludge (Method C.19):
log Koc (soil) = 3.0 +/- 0.4 (pH = 6.2, 25°C)
log Koc (sludge) = 3.2 +/- 0.8 (pH = 6.2, 25°C)
Estimation of log Koc using KOCWIN v2.00:
log Koc = 3.700 (Koc = 5012)
Key value for chemical safety assessment
Additional information
The distribution between the organic phase of soil or sediments and the pore water was estimated using a KOCWIN v 2.00. The soil adsorption coefficient of AQwas estimated to be 5012 L/kg - Kow method (Log Koc = 3.700 for anthraquinone) (Ekotoxikologické centrum Bratislava, s.r.o., 2010).
The adsorption coefficient of Anthraquinone on soil and on sewage sludge was also estimated using the HPLC method with reference compounds in GLP study (Čížek K., Ph.D., 2010). The test was performed according to the Method C.19 Estimation of the adsorption coefficient (KOC) on soil and sewage sludge using high performance liquid chromatography (HPLC), Council Regulation (EC) No 440/2008, Published in O.J.L 142, 2008.
Estimation of the adsorption coefficient (Koc) on soil and sewage sludge is log Kocsoil= 3.0 ± 0.4 at pH = 6.2 and 25°C and log Kocsludge= 3.2 ± 0.8 at pH = 6.2 and 25°C (Čížek K., Ph.D., 2010).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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