Product Name: Ethyl Mercaptan
Other Name: Ethanethiol
CAS No.: 75-08-1
Appearance: Clear and colorless liquid
Purity (Ethyl Mercaptan): Min. 99.0% wt
Ethyl Mercaptan CAS 75-08-1
Description
Ethyl Mercaptan Quick Details
| Chemical Name | Ethyl Mercaptan |
| Other Name | Ethanethiol |
| CAS No. | 75-08-1 |
| Appearance | Clear and colorless liquid |
| Odor | Strong, unpleasant, penetrating |
| Purity (Ethyl Mercaptan) | Min. 99.0% wt |
Ethyl Mercaptan is a volatile organosulfur compound with a strong, penetrating odor. Its very low odor detection threshold makes it suitable for fuel-gas odorization, helping enable the early detection of gas leaks in LPG and natural-gas distribution systems. It is also used as an intermediate in petrochemical processing, chemical synthesis, and specialty chemical production.
Typical Properties
| Parameter | Specification |
|---|---|
| Non-volatile residue | Max. 0.05% wt |
| Melting point | -148 to -144 degrees C |
| Cloud point | Max. -30 degrees C |
| Boiling point at 760 mmHg | 35 to 37 degrees C |
| Critical temperature | 225 to 228 degrees C |
| Density at 15.6 degrees C | 0.839 to 0.862 kg/L |
| Vapour pressure at 20 degrees C | 2.1 to 2.4 |
| Viscosity at 20 degrees C | 0.35 to 0.45 mPa.s |
| Solubility in water at 20 degrees C | 0.68 to 0.7% wt |
| Solubility in LPG / hydrocarbon | Miscible |
| Flash point | -45 to -43 degrees C |
| Autoignition temperature | 295 to 304 degrees C |
| Lower explosion limit | 2.8 to 3 vol% |
| Upper explosion limit | 18 to 19 vol% |
| Human odor detection limit | 0.2 to 0.5 ppb |
Applications
- LPG odorization: used to provide a distinctive odor for early gas-leak detection.
- Natural-gas odorization: used in fuel-gas distribution systems where odor detection supports safety procedures.
- Petrochemical processing: used as an intermediate in selected sulfur-containing compound synthesis.
- Chemical manufacturing: used as a raw material or intermediate for specialty chemicals and organic sulfur compounds.
- Agricultural and pharmaceutical intermediates: used in selected synthesis applications.