T8301930
Chlorosulfonic Acid , >97.0%(T) , 7790-94-5
CAS NO.：7790-94-5
Empirical Formula: ClHO3S
Molecular Weight: 116.52
MDL number: MFCD00011523
EINECS: 232-234-6
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | -80°C |
| Boiling point: | 151-152 °C/755 mmHg (lit.) |
| Density | 1.753 g/mL at 25 °C (lit.) |
| vapor density | 4 (vs air) |
| vapor pressure | 1 mm Hg ( 25 °C) |
| refractive index | n |
| Flash point: | 158°C |
| storage temp. | Room Temperature, under inert atmosphere |
| solubility | Miscible with hydrocarbons. |
| form | Oily Liquid, Fuming In Air |
| pka | -6.49±0.15(Predicted) |
| Specific Gravity | 1.753 |
| color | Yellow to brown |
| PH Range | 1 |
| PH | <1 (20°C in H2O, Aqueous solution; rigorous decomposition) |
| Water Solubility | reacts |
| Sensitive | Moisture Sensitive |
| Merck | 14,2165 |
| Stability: | Stable, but reacts violently with water. In case of spills, mop up with sand - do not add water. Reacts with most metals to yield (flammable) hydrogen gas. Incompatible with strong bases, carbonates, water, combustible materials, strong oxidizing agents, most metals, organic materials, sulfides, cyanides, carbides. |
| LogP | -0.003 at 25℃ |
| CAS DataBase Reference | 7790-94-5(CAS DataBase Reference) |
| EPA Substance Registry System | Chlorosulfonic acid (7790-94-5) |
Description and Uses
Chlorosulfonic acid is a highly corrosive, colorless to yellow, slightly cloudy, fuming liquid with a sharpodor. Molecular weight =115.52; Boiling point =155℃;Freezing/Melting point =-80℃. Hazard Identification(based on NFPA-704 M Rating System): Health 4,Flammability 0, Reactivity 2 . Reactive with water.
Chlorosulfonic acid is used as detergent and as an anti-contrail agent. It is used as an intermediate in the production of other substances such as pharmaceuticals and chemicals. It finds application in producing smoke screens.
Safety
| Symbol(GHS) |   GHS05,GHS06 |
| Signal word | Danger |
| Hazard statements | H314-H330-H335 |
| Precautionary statements | P260-P271-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338 |
| Hazard Codes | C |
| Risk Statements | 14-35-37 |
| Safety Statements | 26-45 |
| RIDADR | UN 1754 8/PG 1 |
| WGK Germany | 1 |
| RTECS | FX5730000 |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | I |
| HS Code | 28062000 |
| Hazardous Substances Data | 7790-94-5(Hazardous Substances Data) |
