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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 204-611-5 | CAS number: 123-23-9
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Data waiving:
- study technically not feasible
- Justification for data waiving:
- other:
Reference
Description of key information
No melting point was determiend up to the SADT (25 °C) of the test item.
Key value for chemical safety assessment
Additional information
According to REACH Annex XI, the test on melting point does not need to be performed as the thermal stability of the test item is medium. A DSC test was performed and an exothermic effect was observed with onset temperature of 88 °C marking the decomposition of the test item. The SADT (Self-Accelerating Decomposition Temperature) of the test item was determined to be 25 °C. Up to the SADT no melting point was determined. Therefore, no test on melting point is needed.
Additionally, a study equivalent to OCED 102 using differential scanning calorimetry was performed in order to determine the melting point of the test item. 24.4 g of the test item were weighted in 270 µL Nimonic crucible and heated from 0 to 250 °C with heating rate of 2 °C/min. An exothermic peak was observed in the DSC thermogram with onset of 88 °C, at which Q=100 W/kg, and the peak was reached at 110 °C (Qmax). Decomposition of the test item was observed. The total heat of decomposition was determined to be 623 J/g. It was determined that the stability of the test item is medium. The SADT (Self-Accelerating Decomposition Temperature) of the test item was determined to be at 25 °C. Up to the SADT no melting point could be determined.
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.
