Phosgene (COCl₂)
CAS Number:
75-44-5
Phosgene (COCl₂) is a colorless, highly toxic gas with a faint odor of freshly cut hay or grass. It is produced during the combustion or thermal decomposition of chlorinated compounds, including chlorinated solvents, refrigerants, and plastics. Phosgene is also used as a chemical intermediate in the production of pharmaceuticals, agricultural chemicals, and polymers. It is one of the most dangerous industrial gases because it causes little immediate irritation at toxic concentrations, leading to delayed pulmonary edema that can be fatal 24–48 hours after exposure. Workers in chemical manufacturing, fire response, and environments where chlorinated materials are heated or burned are at risk.
Phosgene monitoring helps protect workers from a highly toxic gas that can cause delayed lung injury, especially when chlorinated solvents or materials are exposed to heat during welding, cutting, or fire events. RAECO Rents gas monitors are bump tested or span calibrated on the day of shipment. Our team can help confirm the right monitor, alarms, and setup for the job, with fast turnaround and phone support so you can get reliable field readings quickly.
