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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 229-440-3 | CAS number: 6535-46-2
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2005
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: GLP missing, but test in analogy to official guideline
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 001
- Report date:
- 2001
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: national standard (VDI 2263)
- Principles of method if other than guideline:
- Differential Scanning Calorimetry (DSC)
- Type of method:
- thermal analysis
Test material
- Reference substance name:
- 3-hydroxy-N-(o-tolyl)-4-[(2,4,5-trichlorophenyl)azo]naphthalene-2-carboxamide
- EC Number:
- 229-440-3
- EC Name:
- 3-hydroxy-N-(o-tolyl)-4-[(2,4,5-trichlorophenyl)azo]naphthalene-2-carboxamide
- Cas Number:
- 6535-46-2
- Molecular formula:
- C24H16Cl3N3O2
- IUPAC Name:
- 3-hydroxy-N-(2-methylphenyl)-4-[(2,4,5-trichlorophenyl)diazenyl]-2-naphthamide
- Test material form:
- solid: nanoform, no surface treatment
Constituent 1
Results and discussion
Melting / freezing point
- Atm. press.:
- ca. 1 013
- Decomposition:
- yes
- Decomp. temp.:
- 270 °C
- Remarks on result:
- other: decomposition with a mean energy of -300 J/g
Any other information on results incl. tables
Closed cup: The measurements showed an endothermic effect in the temperature range 260 - 270°C directly followed by a spontaneous exothermal decomposition in the temperature ranges 270 - 290°C with a decomposition energy of -170 J/g followed by a second exothermal decomposition in the temperature ranges 290 - 450°C with a decomposition energy of -300 J/g.
Open cup: A measurement showed an oxidation reaction starting at approximately 240°C. This oxidation reaction covers the thermal decomposition.
Applicant's summary and conclusion
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.
