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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 221-576-1 | CAS number: 3148-73-0
Melting point / freezing point
Administrative data
Link to relevant study record(s)
Description of key information
137.9 ± 0.4°C, OECD 102, capillary method with photocell, Das 2003
137.8 ± 2.4°C, statistical average of literature references
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 137.8 °C
Additional information
A survey of 22 unique literature references for the melting point was made from the CAS Registry Experimental Properties database and Reaxys (see literature search). Patents were discarded. The arithmetic mean was used where ranges were reported. The arithmetic mean and standard deviation for the dataset were calculated as 137.8 ± 2.4°C. As no values fell outside ±3 e.s.d., this was considered to be a reasonable dataset and representative value for the melting point.
An OECD guideline 102 study conducted under GLP was available. A melting point of 137.9±0.4°C was reported, in very good agreement with the statistical average of reported literature values.
The value reported by Das is considered to be relevant, adequate, and reliable for risk assessment purposes; the endpoint is complete.
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.
