Chlorosulfonic acid also known as chlorosulfuric acid is an inorganic compound, its chemical formula is HSO₃Cl. It is a colorless distillable liquid and is a hygroscopic and a strong lachrymator. It acts as a dehydrating, sulfonating, chlorinating, and oxidizing agent. It is a potent acid component that is produced commercially by reacting dry hydrogen chloride gas in an equimolar ratio with sulfur trioxide. It is used in making detergent and as an anti-contrail agent. It is utilized also as an intermediate in the manufacturing of other substances including, pharmaceuticals, chemicals, etc.
| Product Name | Chlorosulfonic Acid |
| CAS Number | 7790-94-5 |
| Grades | Standard |
| Application Area | Multiple |
| Molecular Weight | 116.52 g/mol |
| Formula | HSO3Cl |
| Melting Point | -80 °C |
| Boiling Point | 151 to 152 °C |
| Density | 1.75 g/cm³ |
| Appearance | Colorless to yellow liquid |