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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
explosiveness
Type of information:
other: Expert Statement
Adequacy of study:
key study
Study period:
2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Qualifier:
according to
Guideline:
other: Appendix 6 of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria
Qualifier:
according to
Guideline:
other: CLP, Annex I, Part 2, paragraphs 2.1.4.2 and 2.1.4.3
Qualifier:
according to
Guideline:
other: 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
Principles of method if other than guideline:
The screening procedure used was 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
GLP compliance:
no
Parameter:
thermal sensitivity - Koenen test: diameter of the orifice plate
Remarks on result:
not measured/tested

Screening evaluation:

Analysis of the molecular structure revealed, that an azo-group is present in the molecule representing an alert structure for explosive properties. Calculation of the oxygen balance according to the above mentioned formula is -183.45 and therefore slightly higher than the trigger value of -200.

Determination of the exothermic decomposition energy:

In the thermal analysis, a curve displayed one peak between 300 and 350 °C representing 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:
Reactive Yellow 039 is considered to be non-explosive according to Directive 67/548/EEC and Regulation (EC) 1272/2008.
Executive summary:

Analysis of the chemical structure of Reactive Yellow 39 reveals an azo-group as an alert for explosive properties. 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.

Description of key information

Analysis of the chemical structure of Reactive Yellow 039 reveals an azo-group as an alert for explosive properties. 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.

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

Justification for classification or non-classification

Reactive Yellow 039 is considered to be not explosive, hence it does not warrant classification as per the Regulation (EC) No. 1272/2008.