Registration Dossier

Diss Factsheets

Physical & Chemical properties

Boiling point

Currently viewing:

Administrative data

Link to relevant study record(s)

boiling point
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance is a solid which decomposes before boiling

Description of key information

Boiling point [ATMP-xNH4]: ATMP-xNH4 will undergo thermal decomposition without boiling.

Key value for chemical safety assessment

Additional information

The requirement to conduct a boiling point study for ATMP-xNH4 was waived because the substance was expected to undergo decomposition without boiling. This statement is supported by the evidence from a DSC study which demonstrate that the anhydrous parent acid, ATMP-H melts from about 178°C with decomposition. See melting point studies reported in Section 4.2. Salts would be expected to undergo the same thermal decomposition as the parent acid.