Phosgene

Question 1

Phosgene properties

Answer 1

Gas
Colourless
heavier
odour of freshly cut grass
Phosgene itself is nonflammable (not easily ignited and burned).

Question 2

Phosgene hazards

Answer 2

V. Toxic ( 37 die in phosgene leak China 2011 )
Phosgene is an insidious poison as the odor may not be noticed and symptoms may be slow to appear
Liquified gas
very corrosive
attacks eyes and skin
Moderate priority to environment- short term effect
contain run off
Decomposes slowly in water or moist air (or when inhaled) to form very corrosive hydrogen chloride gas (hydrochloric acid) and carbon monoxide.
Pulmonary oedima 48 hrs
When heated to decomposition or on contact with water or steam, PHOSGENE will react to produce toxic and corrosive fumes.
attacks the lungs.

Question 3

Uses of Phosgene

Answer 3

chemical warfare WW1
plastics
pesticides

Question 4

firefighting phosgene

Answer 4

GTS BA APP B
avoid contact
upwind
evac or stay indoors
spray
contain run off

Question 5

Phosgene reactions

Answer 5

Decomposes slowly in water or moist air (or when inhaled) to form very corrosive hydrogen chloride gas (hydrochloric acid) and carbon monoxide.May react violently with aluminum, alkali metals (lithium, potassium, sodium