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Physical & Chemical properties

Melting point / freezing point

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Description of key information

Decomposes between 295 and 319°C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
349.84 °C

Additional information

The Melting Point analysis was performed according to internationally accepted testing procedures, using the Differential Scanning Calorimetry method. Test item releases water between 25 and 140 °C as shown on first peak, followed by decomposition of the product between 295 and 319 °C (onset at 299.2 °C, enthalpy = 12.5 J/g).

An estimated value with Mpbpwin v.1.43* using the following smile has been reported to perform the risk assessment:

NS(=O)(=O)c5ccc(O[Co]1Oc3ccc(cc3N=NC(=C(C)O1)C(=O)Nc2ccccc2)S(N)(=O)=O)c(/N=N/C(=C(/Nc4ccccc4)O[Na])C(C)=O)c5

* Mpbpwin is an application contained in the EpiSuite 4.1, the suite of physical/chemical property and environmental fate estimation programs developed by the EPA’s Office of Pollution Prevention Toxics and Syracuse Research Corporation (SRC).