Physical features and properties of R21 – dichloromonofluoromethane (CHCl2F), identification CAS number 75-43-4 and EINEICS number 200-869-8 : gas detectors CHCl2F (R21 – dichloromonofluoromethane) and respiratory protection equipments R21 – dichloromonofluoromethane (CHCl2F), use of a self-contained breathing apparatus (SCBA) or air supplied systems
| Chemical formula | CAS number | Common synonyms |
|---|---|---|
Chemical formula CHCl2F | CAS number 75-43-4 | Common synonyms Dichlorofluoromethane Fluorodichloromethane Refrigerant 21 Halon 112 |
| CE number (EINECS) | Density | Conversion (1 ppm =) |
|---|---|---|
CE number (EINECS) 200-663-8 | Density 3.55 | Conversion (1 ppm =) 4.21 mg/m3 |
| TWA (8h) | STEL (15 mn.) | LEL | UEL | IP | GHS More | Cartridge More |
|---|---|---|---|---|---|---|
TWA (8h) 10 ppm | STEL (15 mn.) - | LEL - | UEL - | IP 12.39 | GHS More  | Filtre ARI |
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