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Diss Factsheets

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
explosive properties of explosives
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 08 July 2014 to 22 October 2014
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.14 (Explosive properties)
GLP compliance:
yes (incl. QA statement)
Key result
Test series:
other: EU A.14
Method:
other: Koenen test for assessing thermal sensitivity according to EU A.14 method
Parameter:
limiting diameter (mm)
Value:
6
Result:
negative, no explosion
Key result
Test series:
other: EU A.14
Method:
other: Koenen test for assessing thermal sensitivity according to EU A.14 method
Parameter:
limiting diameter (mm)
Value:
2
Result:
negative, no explosion
Key result
Test series:
other: EU A.14
Method:
other: BAM fallhammer test for assessing mechanical sensitivity to shock according to EU A.14 method
Parameter:
limiting impact energy (J)
Remarks:
10 kg weight released from a height of 0.4 m, thus equivalent to 40 J
Value:
40
Result:
negative, no explosion

In both tests (thermal test and shock test), there was no indication of explosive properties:


- Thermal test: In the three tests with the 6-mm orifice and the three tests with the 2-mm orifice, the test substance burned with a yellow flame, but there was no explosion (the tube was recovered intact).


- Shock test: In the six repetitions of the assay with the 40J impact energy, there was no evidence of ignition, explosion or decomposition.

Interpretation of results:
GHS criteria not met
Conclusions:
2,2-Difluoroethyl acetate was demonstrated to have no explosive properties.
Executive summary:

The explosive properties of 2,2-Difluoroethyl acetate was investigated in a GLP-compliant study according to the EU A.14 method by carrying out the Koenen test for assessing thermal sensitivity and the BAM fallhammer test for assessing mechanical sensitivity to shock. Mechanical sensitivity to friction was not assessed because not applicable to liquid substances. The results were negative in both tests (thermal test and shock test) and 2,2-Difluoroethyl acetate was thus concluded to be not explosive.

Description of key information

2,2-Difluoroethyl acetate has no explosive properties.

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

An experimental study performed under GLP compliance and in accordance with EU A.14 method was flagged as a key study and assigned a Klimisch score of 1. It reports that 2,2-Difluoroethyl acetate does not present thermal sensitivity and mechanical sensitivity to shock and has thus no explosive properties.

Justification for classification or non-classification

Based on the above information, 2,2-Difluoroethyl acetate does not require a classification regarding its explosive properties under CLP.