What is UAN 32%?
UAN 32% Solution is a nitrogen fertilizer solution composed of urea and ammonium nitrate. One-fourth of the nitrogen is ammonic, one-fourth is nitrate and one-half is urea. It weighs 11.08 lbs. per gallon, has a pH of approximately 7 and has a negligible vapor pressure.
What is UAN fertilizer used for?
Urea ammonium nitrate (UAN) is a soluble, readily available N source with 28-32% N prepared by mixing of ammonium nitrate and urea. It is primarily used as a non-pressurized liquid fertilizer and is for many the preferred source of N for sidedressing of row crops.
What does UAN fertilizer mean?
urea-ammonium nitrate
Production. Liquid urea-ammonium nitrate (UAN) fertilizer is relatively simple to produce. A heated solution containing dissolved urea is mixed with a heated solution of ammonium nitrate to make a clear liquid fertilizer. Half of the total N comes from the urea solution and half from the ammonium nitrate solution.
Is UAN 32 flammable?
May cause fire or explosion if allowed to dry. Explosion Hazard: May be explosive in contact with flammable or organic substances and confinement during fire.
Is UAN 32 corrosive?
Even when warm, no significant amount of ammonia is lost, so the UAN remains fairly non-corrosive.
How do you use UAN fertilizer?
In row crops, apply the fertiliser to the side of the rows, either to the soil surface or place into the soil. Avoid leaf wetting. If injected into the soil, apply far enough to the side of the rows to avoid root pruning and fertiliser burn to the crop roots.
What does 32 UAN weigh?
11.06 pounds per gallon
Thirty-two percent UAN (32-0-0) weighs 11.06 pounds per gallon and salts out (solids separate from the liquid) at 32°F. Twenty-eight percent (28-0-0-5) contains 5 percent sulfur in addition to the nitrogen.
Can I fertilize 28?
LAN (28) is available in a granular form. The product contains 28% nitrogen of which 50% as ammonium-N and 50% as nitrate-N. In addition LAN (28) contains 20% Dolomitic lime resulting in about 4.1% Ca and 2.1% Mg in the product. Both ammonium and nitrate are readily available for plant uptake.
How is UAN 32 made?
The UREA/AMMONIUM NITRATE (UAN) solution is created by dissolution of the amide and nitrate salt in water. It may have a slight ammonia odor. Approximately 35% UREA blended with 45% AMMONIUM NITRATE makes a fertilizer solution that is 32% nitrogen by weight.
Is liquid nitrogen fertilizer flammable?
Flammable Limits: Not established. Extinguishing Media: Considered non-combustible, use medium appropriate to surrounding fire, water spray or fog, foam, carbon dioxide or dry chemical.
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