Re: Gravure & Sulphur Polution

Howard W Etkind (etkindh@ucunix.san.uc.edu)
Sun, 18 Aug 1996 17:33:40 -0400 (EDT)

>
>
> it is true that ammonia (NH4OH)is basic, it is a gas dissolved in water.
> But under the influence of light (UV) and other pollutants in the air it is
> the provider for NOx that is very acid (like in HNO3, nitric acid: the
> stuff you (can) use to etch your platen with).

Ammonia will not photo react into NOx, NOx is the result of internal
combustion engines, which react nitrogen and oxygen under heat and
pressure, or the reaction of nitric acid with iron. Anyhow, this topic
should be dropped or moved to science.environmental.pollution or other
somesuch place.

Howard Etkind
Etkindh@ucunix.san.uc.edu