Ethanesulfonic acid
Synonym(s):Ethanesulfonic acid
- CAS NO.：594-45-6
- Empirical Formula: C2H6O3S
- Molecular Weight: 110.13
- MDL number: MFCD00007529
- EINECS: 209-843-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 02:02:22
What is Ethanesulfonic acid?
Chemical properties
clear yellow to brown liquid
The Uses of Ethanesulfonic acid
Ethanesulfonic acid is employed in the electrolytic reduction of perrhenate solutions. It is also used as a catalyst for alkylation, polymerization and other reactions. Further, it reacts with triethoxymethane to prepare ethanesulfonic acid ethyl ester.
Definition
ChEBI: An alkanesulfonic acid in which the alkyl group directly linked to the sulfo functionality is ethyl.
General Description
Ethanesulfonic acid participates in electrolytic reduction of perrhenate solutions.
Properties of Ethanesulfonic acid
| Melting point: | -17 °C (lit.) |
| Boiling point: | 123 °C/0.01 mmHg (lit.) |
| Density | 1.35 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | >230 °F |
| storage temp. | Store below +30°C. |
| solubility | water: soluble |
| form | Liquid |
| pka | 1.83±0.50(Predicted) |
| Specific Gravity | 1.357 |
| color | Colorless to yellow |
| Water Solubility | soluble |
| BRN | 1743071 |
| CAS DataBase Reference | 594-45-6(CAS DataBase Reference) |
| EPA Substance Registry System | Ethanesulfonic acid (594-45-6) |
Safety information for Ethanesulfonic acid
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. |
Computed Descriptors for Ethanesulfonic acid
| InChIKey | CCIVGXIOQKPBKL-UHFFFAOYSA-N |
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