Octadecanoic acid, reaction products with diethylenetriamine and urea, acetates

Explosiveness

Link to relevant study record(s)

Reference

Endpoint:

explosiveness

Type of information:

other: Expert statement

Adequacy of study:

key study

Study period:

2016-03-07

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Expert assessment

Principles of method if other than guideline:

The screening procedure is 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:

other: Explosive (not specified)

Remarks:

migrated information

Remarks on result:

negative (not further specified)

Screening evaluation

No experimental test data according to EU Method A.14 or comparable methods for FAT 93580 are available.

Considering that explosive properties are associated with the presence of certain chemical groups in the molecule, a screening evaluation can be conducted aimed to identify the presence of such reactive groups within the molecular structure harvesting the capability for a rapid high energy release.

According to CLP Regulation examples of groups which may indicate explosive properties are:

- C-C unsaturation (e.g. acetylenes, acetylides, 1,2-dienes);

- C-Metal, N-Metal (e.g. Grignard reagents, organo-lithium compounds);

- Contiguous nitrogen atoms (e.g. azides, aliphatic azo compounds, diazonium salts, hydrazines, sulphonylhydrazides);

- Contiguous oxygen atoms (e.g. peroxides, ozonides);

- N-O (e.g. hydroxyl amines, nitrates, nitro compounds, nitroso compounds, N-oxides, 1,2-oxazoles);

- N-halogen (e.g. chloramines, fluoroamines);

- O-halogen (e.g. chlorates, perchlorates, iodosyl compounds).

Analysis of the molecular structures the UVCB is composed of revealed, that no chemical structures representing chemical alert structures for explosive properties are present in the molecules.

Calculation of the oxygen balance according to the above mentioned formula is not possible for the UVCB composition.

Determination of the exothermic decomposition energy

In order to assess if the substance FAT93580 possesses the potential to rapidly release huge amounts of energy a thermal analysis (Differential Scanning Calorimetry) has been performed. The results of the measurement are shown in Annex 1.

The curve displays no exothermic peak up to 350 °C. As a result, energy release is below a critical trigger level of 500 J/g and the onset of energy release is below 500 °C.

Summary and Conclusion

In summary, analysis of the chemical structure revealsno chemical groups being present in the molecules composing the UVCB substance representing chemical alert structures for explosive properties. The chemical oxygen balance is not possible to be calculated for this UVCB substance, but the determination of the exothermic decomposition energy demonstrated an energy release 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.

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:

In summary, analysis of the chemical structure reveals no chemical groups being present in the molecules composing the UVCB substance representing chemical alert structures for explosive properties. The chemical oxygen balance is not possible to be calculated for this UVCB substance, but the determination of the exothermic decomposition energy demonstrated an energy release 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 reveals no chemical groups being present in the molecules composing the UVCB substance representing chemical alert structures for explosive properties. The chemical oxygen balance is not possible to be calculated for this UVCB substance, but the determination of the exothermic decomposition energy demonstrated an energy release 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