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EC number: 815-961-9 | CAS number: 1374760-95-8
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Explosiveness
Administrative data
Link to relevant study record(s)
- Endpoint:
- explosive properties of explosives
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Experimental dates: 20-21 November 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- The study was conducted according to an internationally recognized method, and under GLP. No deviation was reported. The test substance is adequately characterised. Therefore full validation applies.
- Qualifier:
- according to guideline
- Guideline:
- UN Manual of Tests and Criteria: Part I: Classification procedures, test methods and criteria relating to explosives of Class 1
- Version / remarks:
- rev. 6 (2015), Appendix 6
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: OECD 113 Screening test for thermal stability and stability in air
- Version / remarks:
- 1981
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Inspection 20-21 June 2017, signed on 04 September 2017
- Specific details on test material used for the study:
- Storage conditions: Ambient temperature (10 °C to 30 °C) in original glass bottle.
The test item was tested as received. No further preliminary treatment such as drying or milling was performed. - Parameter:
- other: DSC screening test
- Remarks:
- J/g
- Value:
- 591
- Interpretation of results:
- study cannot be used for classification
- Conclusions:
- The released energy is slightly more than 500 J/g. Further testing is required.
- Executive summary:
The thermal stability of the test substance was tested, under GLP, according to UN MTC screening procedure/OECD 113 guideline, with Differential Scanning Calorimetry.
The determination was carried out in closed crucible under nitrogen, with a heating rate of 3 K/min. Duplicate results were consistent, with exothermal reaction observed between 250 and 470°C.
The maximum energy released was 591 J/g.
Reference
Two DSC-measurements in closed glass crucibles with the test item showed an endothermal effect in the temperature range of 110 – 135 °C (consistent with the melting point of 117.6°C, determined in study PS20170238-1) and an exothermal effect in the temperature range of 250 – 470 °C with a maximum energy release of 591 J/g.
The results are summarized in the table below.
Assay |
Weight / mg |
Final temperature / °C |
Temperature range / °C |
Type of effect |
Energy / J/g |
1 |
14.18 |
500 |
105 – 130 250 – 470 |
Endothermal Exothermal |
n.r. 552 |
2 |
12.48 |
500 |
110 – 135 250 – 450 |
Endothermal Exothermal |
n.r. 591 |
n.r.: not relevant
Description of key information
DSC screening test: exothermal reaction between 250 and 470°C, maximum energy 591 J/g.
Key value for chemical safety assessment
Additional information
The substance was assessed according to UN MTC Appendix 6 screening procedure, relevant for CLP classification:
The chemical structure contains a N-N bond, as well as 1,2-diene, which are identified as alert structural features.
The Oxygen Balance was calculated as -198, which is very close, but above, the cut-off value of -200.
Therefore, a calorimetric test was conducted: a fully reliable, GLP, experimental study, is available, and is considered as a key study.
Justification for classification or non-classification
Based on screening procedures, as the exothermic decomposition energy is above the threshold of 500 J/g, the study is inconclusive for classification, according to CLP criteria.
Further testing should be required (i.e. test series 2b and 2c). However, it is deemed unnecessary, considering that the substance was tested as pure, i.e. solid, for registration purpose, but it is currently neither handled nor placed on the market under this form. The powder is manufactured in closed conditions, with immediate dilution in solvent. At the date of submission of this dossier, the substance is marketed as a 10% solution in ethyl lactate. Therefore, testing of the commercial product(s) is more relevant.
Moreover, as the exotherm observed for the pure substance was not sharp and high, but broad with energy release very close to the threshold value, this suggests rather a slow decomposition than a violent reaction. Under solution form, with ethyl lactate having no explosive potential, based on its structure, the energy is expected to be absorbed by the solvent, thus to fall below 500 J/g. So no high explosive potential is anticipated from the marketed solution.
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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