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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 207-735-8 | CAS number: 491-36-1
Endpoint summary
Administrative data
Description of key information
| Appearance / physical state / colour | white to off-white solid powder |
| Melting point | 218.3 °C |
| Boiling point | 255.7 °C |
| Density | 0.12 g/mL for pour density; 0.18 g/mL for tap density |
| Particle size distribution | D50 is 61.6 μm |
| Vapour pressure | 0.014955 Pa at 20°C |
| Partition coefficient | LogPow 0.94 at 20°C |
| Water solubility | 2.73 g/L at 20°C |
| Surface tension | 70.8 mN/m |
| Flash point | waived |
| Auto flammability | No self-ignition observed |
| Flammability | not highly flammable |
| Explosiveness | non explosive |
| Oxidising properties | non oxidising |
| pH | 4.97 (as a 1% w/w solution) |
| Dissociation constant | 9.23 at pH 8-10; 2.39 at pH 1-3 |
Additional information
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.
