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Physical & Chemical properties

Melting point / freezing point

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Description of key information

melting/decomposition temperature: 175°C

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
175 °C

Additional information

In the Klimisch 1 non-GLP study from Bütfering (2012) the melting point of Sodium di(1.3-dimethylbutyl) sulfosuccinate was determined with the DSC method according to OECD 102 and EU method A.1.The test item Sodium di(1.3-dimethylbutyl) sulfosuccinate shows no melting of a crystalline main component up to 175 °C according to the definition in the OECD Guideline 102.From 175 °C the test item shows most probably a thermal decomposition with melting (a melting >175 °C cannot be excluded, due to the information of the capillary method; the decomposition products seem to start melting at temperatures >175 °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 temperature of 175 °C will be used.

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