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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Flash point

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Administrative data

Link to relevant study record(s)

Description of key information


Key value for chemical safety assessment

Additional information

The substance intended to be registered is a solid but the technical product is only available as aqueous solution and therefore never manufactured/imported or used in dried form, cf. chapter 4.1.  According to ECHA Guidance on information requirements and Chemical Safety Assessment Chapter R.7a: Endpoint specific guidance, Version 5.0 December 2016, chapter R. "Flash Point: Adaption to standard testing regime", it is stated that testing is technically not possible if decomposition occurs during the melting point study. The technical product is an aqueous solution of MPAAU. As MPAAU decomposed during the melting point study, cf. chapter 4.2 and the technical product is a flame retardant, the endpoint is waived according to REACH Annex XI No. 2 "Testing is technically not possible" .