Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 233-357-8 | CAS number: 10127-27-2
Flammability
Administrative data
- Endpoint:
- flammable solids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods
- Remarks:
- VDI 2263, Part 1
Cross-reference
- Reason / purpose for cross-reference:
- reference to same study
Reference
- Endpoint:
- relative self-ignition temperature (solids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods
- Remarks:
- VDI 2263, part 1
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- other: Directive VDI 2263, Part 1
- Relative self-ignition temperature:
- >= 140 °C
- Remarks on result:
- other: result refers to the pure test substance
- Relative self-ignition temperature:
- >= 160 °C
- Remarks on result:
- other: result refers to the kieselgur mixture (1:1)
- Conclusions:
- Due to the results from the Grewer-Oven screening test further studies are necessary to exclude or classify the substance as self-heating substance according to Regulation (EC) No 1272/2008.
In the screening test according to Grewer with the pure product an endothermal effect was observed in the temperature range 40 - 140°C. At 140°C the beginning of self-heating was recorded. A multistage reaction was observed which led to a maximum temperature of more than 450 °C.
In the screening test with the kieselguhr mixture 81:19 self-heatiing was detected starting at 160°C. A multistage reaction was observed which led to a maximum product temperature of more than 500°C.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- other: Directive VDI 2263, Part 1, burning index
- Qualifier:
- according to guideline
- Guideline:
- UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)
- Version / remarks:
- burning rate
Test material
- Reference substance name:
- Sodium [3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-2-hydroxy-5-nitrobenzenesulphonato(3-)]hydroxychromate(1-)
- EC Number:
- 233-357-8
- EC Name:
- Sodium [3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-2-hydroxy-5-nitrobenzenesulphonato(3-)]hydroxychromate(1-)
- Cas Number:
- 10127-27-2
- Molecular formula:
- C16H11CrN5O8S.Na
- IUPAC Name:
- sodium [3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-2-hydroxy-5-nitrobenzenesulphonato(3-)]hydroxychromate(1-)
Constituent 1
Results and discussion
Flammable solidsopen allclose all
- Key result
- Test procedure:
- other: burning index according to VDI 2263
- Remarks on result:
- other: burning index BZ 4
- Remarks:
- glowing without sparks (smoldering) or slow decomposition without flame
- Test procedure:
- burning rate test: preliminary screening test
- Burning time:
- ca. 63 min
- Remarks on result:
- other: derived based on burning time for 50 mm
Any other information on results incl. tables
The product showed a smouldering fire when an ignition source (flame or hot wire) was applied at ambient temperature. A propagation of the combustion was observed. The product did not melt.
The combustion behaviour of the product at ambient temperature is characterized by the burning index BZ 4 (glowing without sparks (smoldering) or slow decompostion without flame).
Due to the fact that a propagation of the combustion was observed the burning rate had to be determined.
Due to the low burning rate the test was stopped after 15.75 min/50 mm. Derived burning time for a distance of 200 mm: 63 min. The burning time was far above the limit of 2 min for 200 mm. Therfore, the main test to determine the burning rate did not have to be performed.
Applicant's summary and conclusion
- Interpretation of results:
- not classified based on GHS criteria
- Conclusions:
- Combustion Number (BZ) 4 was determined. The burning time was far above the limit of 2 min for 200 mm.
Therefore, the substance has not to be classified as flammable solid according to Regulation (EC) No 1272/2008.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
