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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Boiling point

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Administrative data

Link to relevant study record(s)

Description of key information

The study has been waived because it is technically not feasible


Key value for chemical safety assessment

Additional information

As per REACH Annex VII- column 2, the study on boiling point need not be conducted for substances which decompose before boiling. The boiling point of (3-Ammonio-4-methoxyphenyl)(2-hydroxyethyl)ammonium sulphate, according to Directive 92/69/EC Method A.2, could not be determined, since degradation was observed during determination of the melting point/melting range. The test substance was discoloured to dark brown. Degradation of test substance started at 417 K (144˚C) during the melting process.