Registration Dossier

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
explosiveness
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2010 - 2011
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Guideline compliant well documented study
Qualifier:
according to
Guideline:
EU Method A.14 (Explosive properties)
Deviations:
no
GLP compliance:
no
Parameter:
other: More sensitive to shock than m-dinitrobenzene
Remarks on result:
negative (not further specified)
Parameter:
other: More sensitive to friction than m-dinitrobenzene
Remarks on result:
negative (not further specified)
Parameter:
other: Explosive under influence of flame
Remarks on result:
negative (not further specified)

The performance of experimental tests was not necessary. The sample does not fulfil the criteria of this hazard class because there are no chemical groups associated with explosive properties present in the given molecule of Iron (II) sulfide (judgement based on the UN “Manual of test & Criteria”, Appendix 6, Screening Procedures, point 3.2).

An additionally evidence is given with the result of the thermal stability test (Differential Scanning Calorimeter, DSC) which shows only a low energy potential with regard to decomposition. With the differential scanning calorimetry the heat flow between the (filled) sample crucible and a reference crucible (filled with an inert material or left empty) is measured as a function of the oven temperature and of time. From the recorded heat-flow/time signal the enthalpy of the decomposition reaction (endothermic or exothermic) can be determined.The so-called onset temperature marks the beginning of a thermal effect under the conditions of the chosen heating-up conditions. In order to find the onset temperature using the DSC software the program uses a tangent on the steepest slope of a peak (thermal effect) which determines the onset temperature by the resulting osculation point to the extrapolated base line. The result was decomposition energy of -63.3 J/g (exotherm). In the case of an explosive substance the exothermic decomposition energy is much higher (e.g. organic substances: >-500 J/g).

Interpretation of results:
non explosive
Remarks:
Migrated information
Conclusions:
FeS is non explosive.
Executive summary:

The performance of experimental tests was not necessary.

The sample does not fulfil the criteria of this hazard class because there are no chemical groups associated with explosive properties present in the given molecule of Iron (II) sulfide (judgement based on the UN “Manual of test & Criteria”, Appendix 6, Screening Procedures, point 3.2).

An additional evidence is given with the result of the thermal stability test (Differential Scanning Calorimeter, DSC) which shows only a low energy potential with regard to decomposition. The result was decomposition energy of -63.3 J/g (exotherm). In the case of an explosive substance the exothermic decomposition energy is much higher (e.g. organic substances: >-500 J/g).

Description of key information

non-explosive

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

The performance of experimental tests was not necessary.

The sample does not fulfil the criteria of this hazard class because there are no chemical groups associated with explosive properties present in the given molecule of Iron (II) sulfide (judgement based on the UN “Manual of test & Criteria”, Appendix 6, Screening Procedures, point 3.2).

An additional evidence is given with the result of the thermal stability test (Differential Scanning Calorimeter, DSC) which shows only a low energy potential with regard to decomposition. The result was decomposition energy of -63.3 J/g (exotherm). In the case of an explosive substance the exothermic decomposition energy is much higher (e.g. organic substances: >-500 J/g).

Justification for classification or non-classification

The sample does not fulfil the criteria of this hazard class because there are no chemical groups associated with explosive properties present in the given molecule of Iron (II) sulfide (judgement based on the UN “Manual of test & Criteria”, Appendix 6, Screening Procedures, point 3.2).

Hence. no classification and labelling is needed according to GHS and CLP.