"called" anhydrous ammonia & ...Like everything else that's sold in this world, the name may be a figment of some advertising execs imagination, with just a little bit of truth.
Many years ago I was employed as a Chemical engineer in the
Anhydrous Ammonia business. The Anhydrous Ammonia used by farmers is
definitely virtually pure anhydrous ammonia NH3. It is shipped
under pressure and applied by farmers just below the soil surface.
Some portion escapes to the atmosphere as ammonia gas and the rest
is bound up with moisture in the soil. It is a very effective and
economical way for farmers to apply nitrogen fertilizer.
Anhydrous ammonia is also used to make the ammonium salts (ammonium
sulphate and ammonium nitrate) that John referred to.
Interesting how we went from discussing jewellery to discussing
farming.
Regards
Milt Fischbein
Calgary, Canada