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Physical & Chemical properties

Explosiveness

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Description of key information

The substance does not contain structures associated with explosive properties

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

As stated in the EU method A.14 (2008), section 1.1 “the tests need not to be performed when available thermodynamic information (e.g. heat of formation, heat of decomposition) and/or absence of certain reactive groups in the structural formula establishes beyond reasonable doubt that the substance is incapable of rapid decomposition with evolution of gases or release of heat (i.e. the material does not present any risk of explosion).”

According to the chemical structure and the list of reactive groups that could have explosive properties (Bretherick’s Handbook of Reactive Chemical Hazards, Butterworths, 4th edition) it can be excluded that the substance has explosive properties. Furthermore the determination of the thermal stability of the read across substanec socusate sodium by DSC (Differential Scanning Calorimetry) showed that between 30°C and 450°C the decomposition energy is about -200 kJ/kg and therefore well below the limit of -500 kJ/kg given in the Regulation (EC) No 1272/2008 (CLP) Chapter 2.1.4.3. (c).

Justification for classification or non-classification

Based on measured decomposition energy of -200 kJ/kg and the molecular structure which lacks functional groups related to explosiveness, Docusate Sodium is considered to be non-explosive. Hence. no classification and labelling is needed according to GHS and CLP.