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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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
Guideline:
other: Appendix 6 of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria
Qualifier:
according to guideline
Guideline:
other: CLP, Annex I, Part 2, paragraphs 2.1.4.2 and 2.1.4.3
Qualifier:
according to guideline
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.