Registration Dossier
Registration Dossier
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EC number: 205-362-5 | CAS number: 139-42-4
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
The following adsorption/desorption distribution coefficients were obtained for the analogous test material cerium carbonate at the soil-to-solution ratio of 1/50:
- Mean Koc value: 3940404
Key value for chemical safety assessment
- Koc at 20 °C:
- 3 940 404
Additional information
The adsorption/desorption behaviour of the read-across test material on soil was determined using three soils and the batch equilibrium method in accordance with the standardised guideline OECD 106.
Cerium Carbonate
Adsorption: The Kd values amounted to 11784, 59264 and >100843 mL/g for soils I to III, respectively, with corresponding Koc values of 499332, 5986256 and >5335623 mL/g, respectively. Desorption: The Kd des values were 10147, 102180, > 225268 mL/g for soils I to III, respectively, with corresponding Koc des of 429968, 10321193 and >11918936 mL/g respectively
[LogKoc: 6.6]
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