Physical features and properties of methanethiol (CH4S), identification CAS number 74-93-1 and EINEICS number 200-822-1 : gas detectors CH4S (methanethiol) and respiratory protection equipments methanethiol (CH4S), use of a gas mask (half or full pieces) or powered air purifying respirators (PAPR) with gas cartridges and filters B, AX
| Chemical formula | CAS number | Common synonyms |
|---|---|---|
Chemical formula CH4S | CAS number 74-93-1 | Common synonyms Methyl mercaptan Mercaptomethane Thiomethyl alcohol Methylthiol |
| CE number (EINECS) | Density | Conversion (1 ppm =) |
|---|---|---|
CE number (EINECS) 229-912-9 | Density 1.7 | Conversion (1 ppm =) 1.97 mg/m3 |
| TWA (8h) | STEL (15 mn.) | LEL | UEL | IP | GHS More | Cartridge More |
|---|---|---|---|---|---|---|
TWA (8h) - | STEL (15 mn.) 0.5 ppm | LEL 3.9 % | UEL 21.8 % | IP 9.44 | GHS More    | Filtre AX B |
To learn more
If exposure to dangerous substances affect everyone, the detection and protection solutions against these risks are not the same whether you are a public space, an association, an industry or a community. So do not hesitate to ask us for advice.
Our experts will answer your questions during the day to help you decide what is the most suitable solution for you. We can also alert you with potential exposure risks, risks of combined presence of gases, or any technical information that you would not have thought.