Registration Dossier
Registration Dossier
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EC number: 200-311-3 | CAS number: 57-09-0
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
The experimental study shows that cetrimonium bromide strongly sorb to the soil particles in a dose-dependent L-type isotherm manner in clay soil, but in a more S-type manner in the soil with low clay content. The L-type isotherm indicates high affinity between the adsorbent and the adsorbate. The Kd values varied from 417.7 to 645.5 L/kg. As representative for average soil with organic carbon content of 2%, the Kd value was 646.5 L/kg corresponding to a Kd value of 1047 L/kg for standard soils of 3.4 % organic matter .
Key value for chemical safety assessment
- Koc at 20 °C:
- 31 000
Additional information
[LogKoc: 4.49]
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