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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 230-907-9 | CAS number: 7365-45-9
Endpoint summary
Administrative data
Description of key information
Additional information
The physico-chemical properties of 4-(2-hydroxyethyl)piperazin-1-ylethanesulphonic acid have been reviewed and summarized in the table below.
| Property | Value |
| Appearance/physical state/colour | white crystalline powder |
| Melting point/ freezing point | 213 °C (decomp.) |
| Boiling point | decomposes (calculated as 408 °C, theoretical) |
| Density | 1.44 g/cm3 at 20 °C |
| Particle size distribution (Granulometry) | D50: 74 μm |
| Vapour pressure | 3.2*10-8 Pa at 25 °C |
| Partition coefficient (log Pow) | < -3.85 at 20 °C |
| Water solubility | 703.6 g/l at 20 °C |
| Surface tension | 64 mN/m at 20 °C (conc. 1082 mg/L) |
| Flash point | N/A as solid (data waiving) |
| Auto flammability | 400 °C (self-ignition temp.) |
| Flammability | Non-flammable |
| Explosiveness | Not explosive |
| Oxidising properties | No oxidising properties |
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