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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

In a study to determine the hydrolysis rates of Polyol PX no significant levels of hydrolysis were detected after 5 days in buffers at pH 4, 7 and 9.


In all cases hydrolysis rates were less than 10% by day.


This result indicates a hydrolysis half-life of Polyol PX greater than 1 year at environmentally relevant temperatures and pH levels (between 4 and 9).

Additional information

The available results suggest that abiotic removal in the form of hydrolysis will not be a significant pathway of degradation for Reaction mass of 1,3-Propanediol, 2-(hydroxymethyl)-2-[(methoxymethoxy)methyl]- and 1,3-dioxane-5,5-dimethanol in the environment.