Registration Dossier

Administrative data

Endpoint:
explosiveness
Type of information:
other: Estimation of the explosion properties by the screening procedure of the UN Recommendations on the Transport of Dangerous Goods (Manual of Tests and Criteria, Fourth revised edition, 2003, Appendix 6, “Orange Book”)
Adequacy of study:
key study
Study period:
From August 04, 2010 to September 28, 2010
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
From the screening classification procedure of the internationally recognised UN Recommendation criteria, the test item is not to be classified as explosive material.Thus it can be concluded beyond a reasonable doubt, that the test item is not a potential explosive and does not have a potential for rapid energy release. Nevertheless, this judgment is in respect to classification; it does not necessarily mean that any processing hazards can be discounted.

Data source

Reference
Reference Type:
other: Expert statement
Title:
Unnamed
Year:
2010
Report Date:
2010

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: UN Recommendations on the Transport of Dangerous Goods (Manual of Tests and Criteria, Fourth revised edition, 2003, Appendix 6, “Orange Book”)
Deviations:
not applicable
Principles of method if other than guideline:
The purpose of this study was to estimate the explosive properties of the test item based on the UN Recommendations on the Transport of Dangerous Goods (Manual of Tests and Criteria, Fourth revised edition, 2003, Appendix 6, “Orange Book”) where a set of criteria is compiled to identify materials being potential explosives.
GLP compliance:
no
Remarks:
Expert statement

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder

Results and discussion

Small-scale preliminary tests
Parameter:
other: Explosive (not specified)
Remarks:
migrated information
Remarks on result:
negative (not further specified)

Any other information on results incl. tables

The screening criteria of UN Recommendations on the Transport of Dangerous Goods (Manual of Tests and Criteria, Fourth revised edition, 2003, Appendix 6, “Orange Book”) for explosive properties are the following:

1 Reactive Groups:

The appraisal of the molecular structure indicates that the molecule contains contiguous N-atoms (>N-N=) which might be associated with explosive properties according to the UN Recommendations and the Handbook of Reactive Chemical Hazards1. Other chemical groups associated with explosive properties as compiled in these documents are not present. In absence of other criteria or in case of reasonable doubt with respect to rapid decomposition, this finding would lead to the recommendation for experimental testing.

2 Oxygen Balance:

The oxygen balance is not considered relevant for the evaluation of the explosive properties of this substance as it is not adequately characterized by taking into account carbon, hydrogen and oxygen only and omitting nitrogen, and halogens.

3 Calorimetric Tests

The exothermic decomposition energy was determined using Differential Scanning Calorimetry in a closed, gold plated high pressure vessel (DSC). The calorimetric test is of special importance for the evaluation of compounds containing chemical groups associated with explosive properties. Several exothermic heat effects could be detected. The total decomposition energy (ΔHDec determined between room temperature and 500 °C) was found to be about 268 J/g thus being far below the UN limit of 500 J/g. The onset point of the first exothermic peak was at about 187°C.

Applicant's summary and conclusion

Interpretation of results:
non explosive
Remarks:
Migrated information
Executive summary:

Applying the internationally recognised UN Recommendation criteria, the test item is not to be classified as explosive material and no experimental determination according to the EC test guideline A.14 has to be performed. Thus it can be concluded beyond a reasonable doubt, that the test item is not a potential explosive and does not have a potential for rapid energy release. Nevertheless, this judgment is in respect to classification; it does not necessarily mean that any processing hazards can be discounted.