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Diss Factsheets

Administrative data

Endpoint:
explosive properties of explosives
Type of information:
experimental study
Adequacy of study:
key study
Study period:
21 June 2005 - 27 June 2005
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2005
Report date:
2005

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.14 (Explosive properties)
Qualifier:
according to guideline
Guideline:
other: OECD 113
Version / remarks:
1981: Screening test for thermal stability and stability in air
GLP compliance:
yes (incl. QA statement)

Test material

1
Chemical structure
Reference substance name:
-
EC Number:
469-070-1
EC Name:
-
Cas Number:
17861-60-8
Molecular formula:
C9H26O2Si3
IUPAC Name:
4-ethyl-2,2,4,6,6-pentamethyl-3,5-dioxa-2,4,6-trisilaheptane
Test material form:
liquid
Details on test material:
Appearance: clear, colourless liquid

Results and discussion

Small-scale preliminary tests
Parameter:
other: Thermal stability (DSC)
Value:
500
Remarks on result:
other: The heat of decomposition was below 500 JIg.
Results of test series for explosives
Test series:
other: decomposition energy is below 500 J/g a main test for explosive properties is unnecessary
Method:
other: decomposition energy is below 500 J/g a main test for explosive properties is unnecessary
Parameter:
other: n/a
Result:
other: The heat of decomposition was below 500 J/g. Therefore the test on explosion properties was not necessary.
Remarks on result:
neither a test for propagation of detonation nor a test for sensitivity to detonative shock is required because the exothermic decomposition energy of the organic substance is less than 800 J/g

Any other information on results incl. tables

Thermal Stability (DSC)

The DSC-measurement in the closed glass crucible showed neither an endothermic effect nor an exothermal effect up to the maximum test temperature of 300 cC. Due to the high pressure in the

crucible caused by the evaporation of the test item accompanied with the risk of the burst of the crucible the measurement could not be carried out up to 500 cC, it had to be stopped at 300 cC.

An additional run in a closed stainless steel crucible was performed. The measurement showed neither an endothermic effect nor an exothermal effect up to the maximum test temperature of 500 cC.

Explosive Properties

The heat of decomposition was below 500 J/g. Therefore the test on explosion properties was not necessary.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The test item has no danger of explosion according to the explosive properties in the sense of the consolidated version of Council Directive 67/548/EEC Annex V, A.14.
Executive summary:

 


The heat of decomposition was below 500 J/g. Therefore the test on explosion properties was not necessary. The test item has no danger of explosion according to the explosive properties in the sense of the consolidated version of Council Directive 67/548/EEC Annex V, A.14.