Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

According to the classification scheme of Swann et al. (1983), TMQ has a high adsorption potential in soil/sludge with the adsorption coefficient (log Koc) mostly above 4.09. TMQ is essentially non-volatile with the estimated Henry's law constant in the range of 2.8*10-9 to 3.0*10-5 Pa*m3/mol at ambient temperature using TMQ-dimer and trimer as typical compositions. As a mixture of oligomer derivatives of 1,2-Dihydro-2,2,4-trimethylquinoline with diverse physico-chemical properties, generic distribution is hardly to be modeled. However, considering the low water solubility observed (<3.2 mg/l at 25°C and pH 9), the low vapour pressure (<< 1 Pa), and relatively high Log Pow (5.8 in average) and Log Koc (mostly above 4.09), the TMQ released into environment is expected to be mostly found in sediment and soil compartment.