Physical Properties:
| Melting Point | 17-19 °C (lit.) |
| Boiling Point | 167 °C/10 mmHg (lit.) |
| Density | 1.475-1.485 g/mL at 20 °C 1.481 g/mL at 25 °C (lit.) |
| Vapour density | 3.3 (vs air) |
| Vapour Pressure | 1 mm Hg ( 20 °C) |
| Refractive index |
n |
| Flash Point | >230 °F |
| Storage temprature | 2-8°C |
| Solublity | Water soluble1,000 g/L at 20°C |
| pKa | -2.6(at 25℃) |
| form | Solution |
| Colour | Brown |
| Specific gravity | 1.48 (18/4℃) |
| Water solublity | Miscible with water. Slightly miscible with benzene and toluene. Immiscible with paraffins. |
An Organosulfuric, Colorless liquid With The Molecular Formula CH 3SO 3H And Structure H 3C−S(=O) 2−OH