Reaction mass of 5-[{4-[Benzyl(methyl)amino]phenyl}diazenyl]-1,4-dimethyl-4H-1,2,4-triazol-1-ium bromide and 3-[{4-[Benzyl(methyl)amino]phenyl}diazenyl]-1,4-dimethyl-4H-1,2,4-triazol-1-ium bromide

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:

24 April, 2017

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: According to the screening evaluation recommended in CLP, UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria as well as REACH

Deviations:

not applicable

Principles of method if other than guideline:

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: Basic Red 46 Bromide

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

Results for screening evaluation:

Analysis of the molecular structure of the substance revealed that no such chemical alert structures are present in the molecule.

Calculation of the oxygen balance according to the above mentioned formula is -185.39 and therefore higher than the trigger value of -200.

Determination of the exothermic decomposition energy:

The curve obtained from thermal analysis, displayed two exothermic peaks with a total energy release of 355.17 J/g up to 350 °C. As a result, the energy release is below a critical trigger level of 500 J/g with the onset of energy release being 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 test substance was carried out according to internationally accepted guidelines.

Analysis of the chemical structure revealed no alerts 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 of 355.17 J/g up to 350 °C.

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

The substance was considered to be non explosive.

Key value for chemical safety assessment

Explosiveness:

non explosive

Additional information

A screening for the explosive properties of the test substance was carried out according to internationally accepted guidelines. Analysis of the chemical structure revealed no alerts 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 of 355.17 J/g up to 350 °C. 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 substance was considered to be non-explosive, hence does not warrant the classification as per the CLP (Regulation EC No. 1272/2008) criteria.