Phosgene

Use remote equipment wherever possible. Use water spray to keep fire-exposed containers cool. Extinguish fire using agent suitable for surrounding fire.

If material involved in fire: Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use "alcohol" foam, dry chemical or carbon dioxide.

The decomposition of chlorinated hydrocarbons in closed rooms can result in the accumulation of harmful concn of phosgene, as for example from the use of carbon tetrachloride as a fire extinguishing material, or tetrachloroethylene as a lubricant in the machining of high-grade steel.