Phosgene is an organic chemical compound with the formula COCl 2. It is a toxic, colorless gas; in low concentrations, its musty odor resembles that of freshly cut hay or grass. [ 7 ] It can be thought of chemically as the double acyl chloride analog of carbonic acid , or structurally as formaldehyde with the hydrogen atoms replaced by chlorine ...

What is phosgene? At room temperature, phosgene is a colorless gas. At high concentrations, it has a suffocating odor; at low concentrations, it smells like green corn or new mown hay.

2024年9月6日 · Phosgene is a toxic gas or liquid that can cause damage to the skin, eyes, nose, throat, and lungs. Signs and symptoms depend on how the amount of phosgene, how the person was exposed, and for how long.

2025年2月19日 · phosgene, a colourless, chemically reactive, highly toxic gas having an odour like that of musty hay, used in making organic chemicals, dyestuffs, polycarbonate resins, and isocyanates for making polyurethane resins.

Phosgene is a colorless nonflammable gas that has the odor of freshly cut hay. It is a manufactured chemical, but small amounts occur naturally from the break down of chlorinated compounds.

2022年12月26日 · Phosgene is a hydrophobic, volatile irritant that causes chemical pneumonitis and is a cause of acute respiratory distress syndrome (ARDS) that can be refractory. Phosgene dates back over 200 years to its conception in the laboratory of Cornish chemist John Davy.

Phosgene is a colorless nonflammable gas that has the odor of freshly cut hay. It is a manufactured chemical, but small amounts occur naturally from the break down of chlorinated compounds.

Phosgene (COCl₂) is a colorless gas with a suffocating odor like musty hay. Exposure to phosgene may cause irritation to the eyes, dry burning throat, vomiting, cough, foamy sputum, breathing difficulty, and chest pain; and when liquid: frostbite. Workers may be harmed from exposure to phosgene.

2023年3月1日 · Phosgene is a building block chemical in the manufacture of diisocyanate chemicals used to make a range of polyurethane products used in everyday life, including flexible foam in upholstered furniture, rigid foam as insulation in walls and roofs, and thermoplastic polyurethane used in medical devices and footwear.

Phosgene is a strong poison.Its smell may not be noticed. Signs of exposure may sometimes be detected slowly. [2] Phosgene can be seen at 0.4 parts per million.This amount is four times the safe amount. Its high ability to poison doesn't come from the hydrogen chloride released by a process.It comes from the action of the phosgene on the proteins in the pulmonary sac of the …