Registration Dossier

Administrative data

Endpoint:
explosive properties of explosives
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-05-02 - 2017-09-15
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report Date:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
UN Manual of Tests and Criteria: Part I: Classification procedures, test methods and criteria relating to explosives of Class 1
Version / remarks:
Rev. 6, 2015
Deviations:
no
Qualifier:
according to
Guideline:
other: OECD Test Guideline 113: Thermal Stability
Version / remarks:
1981
Deviations:
no
GLP compliance:
yes (incl. certificate)

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Details on test material:
Test Item: Leuco Sulfur Blue 15
Appearance: Dark, near black powder

Results and discussion

Small-scale preliminary tests
Key result
Parameter:
other: Thermal stability
Remarks on result:
other: < 500 J/g
Remarks:
Due to the fact that the energy of the exothermic decomposition was below the threshold of -500 J/g, further tests for explosive properties had not to be performed.

Any other information on results incl. tables

Thermal stability (DSC)

In the temperature range of 100 – 130 °C a small endothermic effect can be observed, which is followed by two exothermic effects in the temperature ranges of 210 – 310 °C and
320 – 450 °C, with an overall decomposition energy of approximately -110 J/g.

Table 2:    Results of the DSC-measurements

No.

Sample weight / mg

Start of effect / °C

Energy/ J/g

Remark

PN13839

6.20

100
240
320

+20 (endothermic)
-10 (exothermic)
-90 (exothermic)

Figure 3

PN13862

8.18

100
210
350

+30 (endothermic)
-50 (exothermic)
-60 (exothermic)

Figure 4

Due to the decomposition energy being below the threshold of -500 J/g, further tests for explosive properties did not have to be performed.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
In the DSC-measurements the test item Leuco Sulfur Blue 15 showed two exothermic effects in the temperature ranges of 210 – 310 °C and 320 – 450 °C, with an overall decomposition energy of approximately -110 J/g. Due to the fact that the energy of the exothermic decomposition was below the threshold of -500 J/g, further tests for explosive properties had not to be performed.

According to the results of the test on thermal stability, the test item is classified as following:
UN Transport Regulation: The test item does not have to be classified as explosive substance in class 1 according to the UN Transport Regulation.
GHS (CLP Regulation EC 1272/2008: Annex 1: 2.1): The test item does not have to be classified as explosive substance according to GHS or CLP Regulation EC 1272/2008 Annex 1: 2.1, respectively.
Regulation EC 440/2008 and Directive 67/548/EEC: The test item has no explosive properties according to the Regulation EC No. 440/2008 Method A.14. Explosive Properties.
Executive summary:

Summary

In the DSC-measurements the test item Leuco Sulfur Blue 15 showed two exothermic effects in the temperature ranges of 210 – 310 °C and 320 – 450 °C, with an overall decomposition energy of approximately -110 J/g. Due to the fact that the energy of the exothermic decomposition was below the threshold of -500 J/g, further tests for explosive properties had not to be performed.

According to the results of the test on thermal stability, the test item is classified as following:

UN Transport Regulation: The test item does not have to be classified as explosive substance in class 1 according to the UN Transport Regulation.

GHS (CLP Regulation EC 1272/2008: Annex 1: 2.1): The test item does not have to be classified as explosive substance according to GHS or CLP Regulation EC 1272/2008 Annex 1: 2.1, respectively.

Regulation EC 440/2008 and Directive 67/548/EEC: The test item has no explosive properties according to the Regulation EC No. 440/2008 Method A.14. Explosive Properties.