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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 226-551-9 | CAS number: 5423-22-3
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
The water solubility of the substance at 25 °C was estimated to be 0.95 g/mL < water solubility < 1.00 g/mL by using visual observation (in accordance with EC A.6 and OECD 105 guidelines). The pH range of the water fraction after the test was between 3.56 and 4.32. The water solubility of the guanidine part of the salt is 0.31 g/mL < water solubility < 0.33 g/mL, at 25 °C.
Key value for chemical safety assessment
- Water solubility:
- 310 g/L
- at the temperature of:
- 25 °C
Additional information
Key value for CSA: 0.31 g/mL < water solubility < 0.33 g/mL at 25 °C, corresponding to the guanidine part (32.7 wt.%) of the guanidinium phosphate (1:1) salt.
For guanidinium phosphate (1:1) salt the water solubility can be expressed as: 0.95 g/mL < water solubility < 1.00 g/mL, at 25 °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.
