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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 278-169-7 | CAS number: 75277-39-3
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2015-11-03
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- capillary method
- Key result
- Melting / freezing pt.:
- ca. 274.9 °C
- Atm. press.:
- ca. 101 325 Pa
- Decomposition:
- yes
- Decomp. temp.:
- 260 °C
- Remarks on result:
- other: The substance melted under decomposition.
- Conclusions:
- The test item melts under decomposition. The decomposition temperature is 260 °C.
- Executive summary:
The melting point of the test item was determined in an experimental study under GLP conditions according to OECD Test Guideline 102 and EU Method A.1. The determination of the melting temperature of the test substance was performed by the capillary method with hot block heating. At the start of the test at 250 °C the test substance was a white powder. The colour of the test substance changed to brown at about 260 °C and started melting at about 270 °C. Therefore, it is concluded that the test item melts under decomposition. The mean melting point was determined as 274.9 °C.
Reference
At the start of the test at 250 °C the test substance was a white powder. The colour of the test substance changed to brown at about 260 °C and started melting at about 270 °C.
The results of 3 repeated determinations of the melting temperature of the test substance were: 274.2, 276.1 and 274.3 °C. The mean melting temperature of the test item is 274.9 °C, with a standard deviation of 0.87. In each case the melted test substance appeared brown. The change of colour indicates decomposition of the test substance. Therefore, the test item melts under decomposition.
Description of key information
The test item melts under decomposition. The decomposition temperature is 260 °C (reference 4.2-1).
Key value for chemical safety assessment
Additional information
The melting point of the test item was determined in an experimental study under GLP conditions according to OECD Test Guideline 102 and EU Method A.1. The determination of the melting temperature of the test substance was performed by the capillary method with hot block heating. At the start of the test at 250 °C the test substance was a white powder. The colour of the test substance changed to brown at about 260 °C and started melting at about 270 °C. Therefore, it is concluded that the test item melts under decomposition. The mean melting point was determined as 274.9 °C.
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.
