Registration Dossier

Diss Factsheets

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
explosive properties of explosives
Type of information:
other: Expert statement
Adequacy of study:
key study
Study period:
05 November 2015
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Qualifier:
according to guideline
Guideline:
other: As per the screening evaluation recommnded in CLP, UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria as well as REACH
Version / remarks:
The screening procedure as described in:
- CLP, Annex I, Part 2, paragraphs 2.1.4.2 and 2.1.4.3
- Appendix 6 of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria
- Technical Guidance Document on the Information Requirements for REACH, Part 2 EWG 1-7, REACH Implementation Project (RIP) 3.3 Phase 2, chapter 7.1.11.3
Deviations:
no
GLP compliance:
no
Key result
Parameter:
other: Determination of the exothermic decomposition energy
Remarks on result:
other: The overall energy release is below a critical trigger level of 500 J/g and the onset of energy release is below 500 °C.
Parameter:
other: calculated chemical oxygen balance
Remarks on result:
other: calculated chemical oxygen balance is above the trigger value of -200

Screening evaluation:

Analysis of the molecular structure of the substance revealed that one azo group representing a chemical alert structure for explosive properties is present in the molecule.

The oxygen balance was calculated to be -113.20 and therefore is higher than the trigger value of -200.

Determination of the exothermic decomposition energy:

The curve displayed one exothermic peak between 300 °C and 350 °C with a total energy release of 113.22 J/g which is considered to represent substance decomposition. As a result, the overall energy release is below a critical trigger level of 500 J/g and the onset of energy release is below 500 °C.

Interpretation of results:
GHS criteria not met
Conclusions:
The substance is considered to be non-explosive based on the screening evaluation.
Executive summary:

A screening for the explosive properties of the substance was carried out according to internationally accepted guidelines. Analysis of the chemical structure revealed one azo group representing a chemical alert structure for explosive properties is present in the molecule. The calculated chemical oxygen balance is above the trigger value of -200, but the determination of the exothermic decomposition energy demonstrated an energy release far below the critical value of 500 J/g. Therefore, the substance is considered to be non-explosive according to Regulation (EC) 1272/2008 and no further testing is required.

Description of key information

The substance is considered to be non-explosive based on the screening evaluation.

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

A screening for the explosive properties of the substance was carried out according to internationally accepted guidelines. Analysis of the chemical structure revealed one azo group representing a chemical alert structure for explosive properties is present in the molecule. The calculated chemical oxygen balance is above the trigger value of -200, but the determination of the exothermic decomposition energy demonstrated an energy release far below the critical value of 500 J/g. Therefore, the substance is considered to be non-explosive according to Directive 67/548/EEC and Regulation (EC) 1272/2008 and no further testing is required.

Justification for classification or non-classification

The test substance has been considered to be non-explosive based on the expert statement, hence does not warrant classification according to the EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation (EC) No. 1272/2008.