Registration Dossier
Registration Dossier
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EC number: 222-695-1 | CAS number: 3576-88-3
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
The adsorption potential to soil or sediment is low. The mean of the calculated logKoc-values is: logKoc = 1.35.
Key value for chemical safety assessment
- Koc at 20 °C:
- 22.4
Additional information
According to the Annexes VIII and IX of REACH "The study does not need to be conducted if:
based on the physicochemical properties the substance can be expected to have a low potential for adsorption (e.g. the substance has a low octanol-water partition coefficient); ...".
The partition coefficients of melam is low, i.e. log Pow <-0.9, see Chapter 4.7. A relevant adsorption of melam to soil is therefore not expected and a waiving of the study is justified.
3 results are available from calculation methods. The mean of the 3 available log Koc was calculated according to the ECHA Guidance Documents on Info Requirements, R.7.1.15.3 to logKoc = 1.35, corresponding to Koc = 22.4.
The adsorption potential to soil or sediment is therefore low.
A further study with three soil types was disregarded because the reported and used spiking solution of 5 g melam/L methanol is not feasible, as the solubility of melam in methanol is 0.17 mg/L at 23 °C.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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
