Or, one could make a filter filled with citric acid to trap the amonia.
rick

On Wed, 12 May 2004 22:08:40 -0700, jmax wrote:

I have spent many years teaching fire department and emergency
responders in
hazardous material responses. One very scary fact that I learned in the
Haz-Mat response area is that the railroads utilize the same rail tank
car
to hall both Propane and Ammonia. As a result it is possible to get a
propane cylinder filled with ammonia contaminated gas. The impact of
this
contamination is that ammonia very rapidly dissolves copper. The copper
Propane lines can leak explosive gas with even one contaminated propane
cylinder fill. Removal of all copper tube and fittings is recommended to
prevent this possibility of a explosive propane gas leak.





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