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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 204-679-6 | CAS number: 124-09-4
Melting point / freezing point
Administrative data
Link to relevant study record(s)
Description of key information
MP = 39.13 °C (p > 99.0 %)
MP = 40.75 °C (p = 99.99 %)
mean = 39.9 °C
Key value for chemical safety assessment
Additional information
Two reliable studies provide melting point measurements of hexamethylene diamine, as pure and anhydrous, using Differential Scanning Calorimetry. The method can be related to OECD 102/EC A1 guidelines. Both were not conducted under GLP, but nevertheless with obvious scientific considerations for quality. The test method is appropriate. Unfortunately, the atmospheric pressure was not recorded.
These results are supported by numerous literature data which, due to poor reliability could not be assigned in most cases, but all results were within the range 36-43 °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.
