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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
explosiveness, other
Type of information:
other: Exemption statement
Adequacy of study:
key study
Study period:
Start date of the experimental work: 17/06/2009 and Completion date of the experimental work: 13/07/2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Expert statement based on the structural formula
Qualifier:
no guideline followed
Principles of method if other than guideline:
Experimental techniques are available for the classification of a substance or preparation as explosive. These are described in EC Test A14. However, according to the OECD testing methods publication, test A14 need not to be carried out when examination of the structural formula establishes beyond reasonable doubt that the substance has no explosive properties (i.e. it is not capable of rapid gas or heat release).
GLP compliance:
no
Parameter:
other: expert statement based on structural formula
Remarks:
migrated information
Remarks on result:
negative (not further specified)
Remarks:
Based on this expert statement, the material will not exhibit explosive properties.

Assessment of Explosive Properties of the test item:

Examination of the structural formula indicates:

• There are no chemical groups associated with explosive properties.

• The oxygen is not bound in energetic functional groups – it is bound in CO groups which do not possess explosive behaviour.

• Thermal stability analysis has been conducted on the sample using Differential Scanning Calorimetry (DSC). Two exothermic events were observed. The first from 164.7°C (-18.4 J.g-1) and the second from 248.4°C (-458.5 J.g-1). The total heat of decomposition was found to be less than 500 J/g.

Based on this combination of factors, it is beyond reasonable doubt that the material will not exhibit explosive properties. There are no elements of the screening procedure which begin to suggest that explosive properties may be exhibited by the substance. The conduct of the A14 tests is therefore not considered appropriate.

Differential Scanning Calorimetry (DSC)

A sample of the test substance was charged to a gold (high pressure) DSC crucible which was then sealted and placed in the furnace. The sample was then ramped from 25°C to 400°C at 4 K. min-1.

Test results

The sample was observed to undergo two exothermic events. The first commenced from 164.7°C and had a heat of decomposition of -18.4 J.g-1 and the second commenced from 248.4°C and had a heat of decomposition of -458.5 J.g-1.

Interpretation of results:
non explosive
Conclusions:
Based on this expert statement, the material will not exhibit explosive properties.

Description of key information

Based on this expert statement, the material will not exhibit explosive properties.

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

Justification for classification or non-classification