Reaction mass ofDisodium [1-{[2-(hydroxy-kO)-3,5-dinitrophenyl]diazenyl-kN1}naphthalen-2-olato(2-)-kO][3-(hydroxy-kO)-4-{[2-(hydroxy-kO)naphthalen-1-yl]diazenyl-kN1}-7-nitronaphthalene-1-sulfonato(3-)]chromate(2-) andDisodium [1-{[2-(hydroxy-kO)-3,5-dinitrophenyl]diazenyl-kN2}naphthalen-2-olato(2-)-kO][3-(hydroxy-kO)-4-{[2-(hydroxy-kO)naphthalen-1-yl]diazenyl-kN1}-7-nitronaphthalene-1-sulfonato(3-)]chromate(2-)

Explosiveness

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:

03 November, 2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Expert statement

Qualifier:

no guideline followed

Principles of method if other than guideline:

Expert judgment based on 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

GLP compliance:

no

Specific details on test material used for the study:

Name: FAT 20037

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.

Results for screening evaluation: Analysis of the above depicted molecular structure revealed that two azo groups representing chemical alert structures for explosive properties are present in the molecule. Calculation of the oxygen balance according to the above-mentioned formula is -126.32 and therefore higher than the trigger value of -200.

Determination of the exothermic decomposition energy: The curve displayed one peak between 290 and 350 °C with an energy release of 387.07 J/g which was considered to represent substance decomposition energy. As a result, the overall energy release was below a critical trigger level of 500 J/g and the onset of energy release was below 500 °C.

Interpretation of results:

GHS criteria not met

Conclusions:

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.

Executive summary:

No experimental test data according to EU Method A.14 or comparable methods are available for Acid Black 107. Hence, an expert judgment based on the screening procedure as described in below mentioned guidelines was conducted:

- 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

Analysis of the chemical structure revealed two azo groups representing chemical alert structures for explosive properties being 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.

Description of key information

No experimental test data according to EU Method A.14 or comparable methods are available for Acid Black 107. Hence an expert judgment based on the screening procedure as described in below mentioned guidelines was conducted:

- 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

Analysis of the chemical structure revealed two azo groups representing chemical alert structures for explosive properties being 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.

Key value for chemical safety assessment

Explosiveness:

non explosive

Justification for classification or non-classification

The test substance was considered to be not explosive, hence it does not warrant classification as per Regulation (EC) No. 1272/2008 (CLP) criteria.