Registration Dossier
Registration Dossier
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EC number: 274-972-1 | CAS number: 70879-65-1
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
The soil adsorption coefficient (Koc) of 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs is estimated to be 3680000 by MCI method. This Koc value when converted at 20 degC is equivalent to a value of 2944000.
Key value for chemical safety assessment
- Koc at 20 °C:
- 2 944 000
Additional information
The soil adsorption coefficient (Koc) of 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs is estimated to be 3680000 by MCI method at 25 degC.This indicates that 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs will have very strong tendency of sorption to soil and therefore have negligible migration potential to groundwater.This Koc value when converted at 20 degC is equivalent to a value of 2944000.
[LogKoc: 6.468]
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