Registration Dossier
Registration Dossier
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EC number: 937-924-7 | CAS number: -
Explosiveness
Administrative data
Link to relevant study record(s)
- Endpoint:
- explosive properties of explosives
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance contains chemical groups associated with explosive properties which include oxygen, but the calculated oxygen balance is less than - 200
- Justification for type of information:
- The substance is used in a mixture with our main product Reactive Black 5_17095-24-8_BLENDWELL SA.
registration number: 01-2119471334-41-0008
submission number: PA330069-52
Decision number: SUB-D-2114220218-60-01/F
Upon the chimical reaction is finished, the black 5 is added to the substance to produce other mixtures
the orange is present in the black 5 in a percentage between 2 and 4.5%
Reactive Black 5_17095-24-8_BLENDWELL SA is not explosive
Analysis of the chemical structure reveals at least two azo groups being present in the molecular structure representing chemical
alert structures 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 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 isrequired. - Reason / purpose for cross-reference:
- data waiving: supporting information
- Reason / purpose for cross-reference:
- reference to other study
- Qualifier:
- according to guideline
- Guideline:
- other:
- Version / remarks:
- CLP, Annex I, Part 2, paragraphs 2.1.4.2 and 2.1.4.3
- Qualifier:
- according to guideline
- Guideline:
- other:
- Version / remarks:
- Appendix 6 of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria
- Qualifier:
- according to guideline
- Guideline:
- other:
- Version / remarks:
- 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:
- Screening based on chemical structure analysis in silica and established calculation models
- Key result
- Remarks on result:
- not measured/tested
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- non explosif
- Executive summary:
According to the CLP Regulation (EC 1272/2008) oxidising solid means a solid substance or mixture which, while in itself is not necessarily combustible, may, generally by yielding oxygen, cause, or contribute to, the combustion of other material.
Blendazol Orange is not classified because is incapable of reacting exothermically with combustible materials.
Reference
Screening evaluation
No experimental test data according to EU Method A.14 or comparable methods for Reactive Blendazol Orange 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 above depicted molecular structure revealed, that at least 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 -87 and therefore higher than the trigger value of -200
Description of key information
Screening evaluation
No experimental test data according to EU Method A.14 or comparable methods for Reactive Blendazol Orange 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 above depicted molecular structure revealed, that at least 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 -87 and therefore higher than the trigger value of -200
Key value for chemical safety assessment
- Explosiveness:
- non explosive
Additional information
According to the REACH Regulation, Annex VII, Column 2, the study does not need to be conducted because the substance is incapable of reacting exothermically with combustible materials, for example on the basis of the chemical structure (e.g. organic substances not containing oxygen or halogen atoms and these elements are not chemically bonded to nitrogen or oxygen, or inorganic substances not containing oxygen or halogen atoms
Justification for classification or non-classification
In summary, analysis of the chemical structure reveals at least two azo groups being present representing chemical alert structures for explosive properties. The calculated chemical oxygen balance is above the trigger value of -200
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.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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