Catalyst 4S

Explosiveness

Administrative data

Endpoint:

explosive properties of explosives

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is an organic substance or mixture containing 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

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING

As stated in the Commission Regulation (EC) No 440/2008, Annex A.14, § 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).”

1. According to the chemical structure it cannot be excluded that the Substance has explosive properties.

2. The determination of the thermal stability of the Substance by DSC (Differential Scanning Calorimetry) showed that up to 500°C the maximum exothermal decomposition energy is about 214 kJ/kg and therefore below the limit of 500 kJ/kg needed for exclusion given in the Regulation (EC) No 1272/2008 (CLP) of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures, Chapter 2.1.4.3. (c).

First Exothermia : Thermal signal Peak temperature = 200 °C; Thermal signal Range = 126-295 °C; Energy = 214 kJ/kg.
Second Exothermia : Thermal signal Peak temperature = 449 °C; Thermal signal Range = 361-477 °C; Energy = 159 kJ/kg.

Therefore, it can be excluded that the Substance has explosive properties (see Attach justification below).