Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

According to REACH Annex VIII column 2, adsorption/desorption studies can be waived for substances with a low potential for adsorption. MMB has a logKow < 1 and is inherently biodegradable. Hence, adsorption/desorption studies can be waived for this substance. QSAR calculations indiate a log KOC value of  0.52. Therefore MMB is not expected to bind to soils but rather, if released, will partition to the water compartment. Henry's law constant is reported as 0.1 Pa x m3/mol. Distribution of MMB which is emitted to water has been modelled. It is not expected that MMB will end in the soil compartment.