Phosgene

CAS RN: 75-44-5

Other Hazardous Reactions

Paint removers and non-flammable dry cleaning solvents (e.g., carbon tetrachloride, chloroform, tri- and tetrachloroethylene and methylene chloride) should never be used in closed areas in the presence of fire or heaters of any kind since they can decompose to phosgene. Welding or heat-treating vessels or equipment that may have contained such materials should be avoided until they have been purged of all residual chemical.
... Solvents, paint removers, & nonflammable dry cleaning fluids containing ... /chlorinated hydrocarbons, esp carbon tetrachloride, chloroform, & methylene chloride/ will decomp to phosgene in presence of fire or heat; deaths have occurred from such decomposition.
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