Related terms:
ccl
hcl
sarin
gas
reagent
sub
chlorine
poison gas
mustard gas
agent
carbon
nerve agent
chloride
safety
reaction
compounds
chemical weapons
biological weapons
chemical
world war
carbon dioxide
weapons of mass destruction
united states
Wikipedia sources:
Phosgene
Chemical warfare
Bhopal disaster
Chloroform
Haloalkane
Polycarbonate
Trench warfare
United Kingdom and weapons of mass destruction
Context for words:
phosgene
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