Registration Dossier
Registration Dossier
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EC number: 228-589-1 | CAS number: 6300-50-1
Explosiveness
Administrative data
Link to relevant study record(s)
- 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 there are no chemical groups present in the molecule which are associated with explosive properties
- Justification for type of information:
- JUSTIFICATION FOR DATA WAIVING:
It is stated in the reference Commision Regulation 440/2008, that the "tests need not to be performed when available thermodinamic information (e.g. heat of formation, heat of decomposition) and/or absence of reactive groups in the structural formula establish 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 (e.g. continuos nitrogen atoms) in Brethericks Handbook of Reactive Chemical Hazards, Butterworths, 4th edition, it cannot be excluded that the substance Direct Red 254 sodium salt has explosive properties.
The determination of the thermal stability of the test substance by DSC (Differential Scanning Calorimetry) showed that between 30°C and 400°C the exothermal decomposition energy is about 481.5 kJ/kg. The thermal stability of the test substance by DSC_HP showed that between 30°C and 400°C the exothermal decomposition energy is about 477 kJ/kg. Both values are therefore below the limit of 500 kJ/kg needed for exclusion given in the Regulation and classify hte substance as non-explosive. - Reason / purpose for cross-reference:
- reference to other study
Reference
Description of key information
Key value for chemical safety assessment
- Explosiveness:
- non explosive
Additional information
Justification for classification or non-classification
According to the chemical structure and the list of reactive groups that could have explosive properties (e.g. continuos nitrogen atoms) in Brethericks Handbook of Reactive Chemical Hazards, Butterworths, 4th edition, it cannot be excluded that the substance Direct Red 254 sodium salt has explosive properties.
The determination of the thermal stability of the test substance by DSC (Differential Scanning Calorimetry) showed that between 30°C and 400°C the exothermal decomposition energy is about 481.5 kJ/kg. The thermal stability of the test substance by DSC_HP showed that between 30°C and 400°C the exothermal decomposition energy is about 481.5 kJ/kg. Both values are therefore below the limit of 500 kJ/kg needed for exclusion given in the Regulation and classify the substance as non-explosive.
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