![Methanedisulphonic acid Structure](/CAS/GIF/503-40-2.gif)
Methanedisulphonic acid
- Product NameMethanedisulphonic acid
- CAS503-40-2
- MFCH4O6S2
- MW176.17
- EINECS207-966-4
- MOL File503-40-2.mol
Chemical Properties
Melting point | 96-100° |
Boiling point | 263℃ at 101.3kPa |
Density | 1.6517 (rough estimate) |
vapor pressure | 0Pa at 25℃ |
refractive index | 1.5300 (estimate) |
storage temp. | Hygroscopic, -20°C Freezer, Under inert atmosphere |
solubility | DMSO (Sparingly, Heated), Methanol (Slightly) |
form | Solid |
pka | -0.71±0.50(Predicted) |
color | White to Off-White |
PH | -0.96 at 23.9℃ and 1g/L |
Water Solubility | 2458g/L(25 ºC) |
Stability | Hygroscopic |
LogP | -1.49 at 25℃ and pH1 |
Dissociation constant | -0.17 at 25℃ |
EPA Substance Registry System | Methanedisulfonic acid (503-40-2) |