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Physical & Chemical properties

Explosiveness

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Description of key information

non explosive

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

According to Annex VII of the REACH Regulation (EC 1907/2006), a study for explosive properties does not need to be conducted if an organic substance contains chemical groups associated with explosive properties, but the exothermic decomposition energy is less than 500 J/g and the onset of exothermic decomposition is below 500 °C.

In a DSC assay, an exothermic peak was recorded between 260 and 330 °C (first exp.) and between 250 and 330 °C (second exp.). The energy release was 73.45 J/g and 81.50 J/g, respectively.

Justification for classification or non-classification

The screening procedure on Acid Red 057 excluded a potential for explosive properties based on the thermal behaviour; thus no classification applies within the CLP Regulation (EC 1272/2008).