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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 237-066-7 | CAS number: 13598-36-2
Melting point / freezing point
Administrative data
Link to relevant study record(s)
Description of key information
- Melting starts at 62.5 degrees Celsius
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 62.5 °C
Additional information
In a key study, the melting range of the test item Phosphonic acid (Phosphorous acid Flake)was determined based on the procedures indicated by the following internationally accepted methods:
- OECD Guideline 102
- EU Method A.1
- EPA OPPTS 830.7200
The test item showed five stages of melting. The melting started at 62.5 °C. At 74.3 °C the final stage of melting was reached. No solid particles were left.
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.
