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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Description of key information

The test item has no melting point. The test item started decomposing above 165 °C (onset 171.5 °C).

Key value for chemical safety assessment

Additional information

The test item has no melting point. The test item started decomposing above 165 °C (onset 171.5 °C).

The calculated melting point according to EpiWin is 349.84°C for both components in Reactive Brown DYHY 0331/0334

------------------------ SUMMARY MPBVP v1.43 --------------------

Melting Point: 349.84 deg C (Adapted Joback Method)

Melting Point: 349.84 deg C (Gold and Ogle Method)

Mean Melt Pt : 349.84 deg C (Joback; Gold,Ogle Methods)

Selected MP: 349.84 deg C (Weighted Value)