Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Biodegradation in water :

According to EPI (Estimation Programs Interface) Suite by means of BIOWIN Linear and Nonlinear method it is indicated that tert-butyl-4-methoxyphenol is a readily biodegradable substance and degrades fast. Also it was estimated that the half of tert-butyl-4-methoxyphenol is 900 hous (37.5 days) which is less than the EPI criteria for persistence (les than 60 days). Therefore it can be estimated that tert-butyl-4-methoxyphenol is not persistent in water medium.


Biodegradation in water and sediment :

Based on the Level III Fugacity Model, the half life period of thetert-butyl-4-methoxyphenol was estimated to be 900 hrs (37.5 days) in water and 337.5 days in sediment respectively. Therefore it is considered that the substance will qualify as not persistent in water medium as the half life does not exceed the EPA criteria of 60 days. However, it can be observed that tert-butyl-4-methoxyphenol was seem to be persistent in sediment medium but can be ignored the sediment persistence as it does not diffuse in the sediment medium and it's percentage diffusion in the sediment medium is reported to be much lower as 0.854 %.


Biodegradation in soil :

The EPI Suite has estimated that tert-butyl-4-methoxyphenol is expected to be found predominantly in soil and its persistence estimate is based on its availability in this medium. Half-life of tert-butyl-4-methoxyphenol in soil was estimated to be 1800 hrs. which exceeds the EPA criteria of >= 2 months (and <= 6 months). Therefore, tert-butyl-4-methoxyphenol is estimated to be persistent in the soil environment.