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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Description of key information

NPPT has a melting point of 91 °C at 1013.25 hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
91 °C

Additional information

Two GLP study were conducted. Both results the melting point to be in the same range. The test item NPPT has a melting point of 91.4 °C at atmospheric pressure (1013.25 hPa) as determined according to Directive EC 440/2008 Method A.1 (GLP study) and of 91 °C at atmosphere pressure (1013.25 hPa) as determined according to the OECD­Guideline for the Testing of Chemicals 102 (GLP study). The value from the OECD-guideline-study was chosen as key value.