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Melting point / freezing point

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Description of key information

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
249 °C

Additional information

In the Klimisch 1 non-GLP study from Kintrup (2012) the melting point of Sulfosuccinic (FA C12-18)E, 2Na was determined with the DSC method according to OECD 102 and EU method A.1. The test item did not show melting up to 249°C. Up to 249 °C the sample shows a weight loss of ca. 7 weight%. From 249 °C the test item shows most probably a thermal decomposition with melting (a melting >300 °C cannot be excluded, due to the information of the capillary method; the decomposition products seem to start melting at temperatures >300 °C) and evaporation of the decomposition components. A vaporization of significant parts of the test item cannot be completely excluded.


For the risk assessment a melting point of 249°C will be used.


This information is considered to be relevant and reliable for the further risk assessment.

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