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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Link to relevant study record(s)

Description of key information

Key value for chemical safety assessment

Additional information

The substance, consisting of two main components (type A and type B, see chapter 1.2), is not stable in water. The degradation strictly depends on pH.

At alkaline conditions demethylolation of hydroxymethyl groups was observed resulting in the formation of oligomers of type B. Whereas at acid conditions depolymerisation was detected resulting in the formation of lower oligomers and monomers. At neutral pH both processes were observed in parallel. Due to the complexity and multitude of reactions a determination of a hydrolysis rate is not possible.