UAN

United American Nurses
Found on http://www.encyclo.co.uk/local/20895

UAN

UAN is a solution of urea and ammonium nitrate in water used as a fertilizer. The combination of urea and ammonium nitrate has an extremely low critical relative humidity (18% at 30 °C) and can therefore only be used in liquid fertilizers. The most commonly used grade of these fertilizer solutions is UAN 32.0.0 (32%N) also known as UN32 or UN-32,...
Found on http://en.wikipedia.org/wiki/UAN
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