What is Urea 46%?
Urea Fertilizers : In not unusualplace with maximum industrial nitrogen fertilizers, urea is made of anhydrous ammonia (NH3). The excessive evaluation of urea—46% N—is the principle motive for the low value of this shape of nitrogen fertilizer. Freight charges and garage and managing are all decrease than with decrease evaluation fertilizers which include ammonium nitrate (34-0-0) or ammonium sulfate (21-0-0).
Urea 46% Nitrogen a white crystalline stable containing forty six% nitrogen, is broadly used withinside the agricultural enterprise as an animal feed additive and fertilizer.
Fertilizer urea may be bought as prills or as a granulated cloth.
In the past, it become normally produced via way of means of losing liquid urea from a “prilling tower” at the same time as drying the product. The prilled fashioned a smaller and softer substance than different substances typically utilized in fertilizer blends. Today, though, enormous urea is synthetic as granules. Granules are larger, harder, and greater proof against moisture. As a result, granulated urea has end up a greater appropriate cloth for fertilizer blends.
Composition and Formula
- Urea, additionally called carbamide, is an natural compound with chemical system CO(NH2)2. This amide has –NH2 organizations joined via way of means of a carbonyl (C=O) purposeful group.
- Urea serves an crucial function withinside the metabolism of nitrogen-containing compounds via way of means of animals and is the principle nitrogen-containing substance withinside the urine of mammals.
- It is a colorless, odorless stable, relatively soluble in water, and almost non-toxic (LD50 is 15 g/kg for rats). Dissolved in water, it's far neither acidic nor alkaline. The frame makes use of it in lots of procedures, maximum significantly nitrogen excretion.
Urea Fertilizers Formula
Urea 46 Formula-Datis Export Group
The liver bureaucracy it via way of means of combining ammonia molecules (NH3) with a carbon dioxide (CO2) molecule withinside the urea cycle. Urea is broadly utilized in fertilizers as a supply of nitrogen (N) and is an crucial uncooked cloth for the chemical enterprise. Friedrich Wöhler’s discovery, in 1828, that Urea may be comprised of inorganic beginning substances, become an crucial conceptual milestone in chemistry. It showed, for the primary time, that a substance, formerly acknowledged best as a byproduct of life, might be synthesized withinside the laboratory, with out organic beginning substances, thereby contradicting the broadly held doctrine vitalism, which said that best residing matters should produce the chemical compounds of life. Urea is an less expensive shape of nitrogen fertilizer with an NPK (nitrogen-phosphorus-potassium) ratio of 46-0-0. Although urea is obviously produced in people and animals, artificial urea is synthetic with anhydrous ammonia.
Although urea regularly gives gardeners the maximum nitrogen for the bottom fee at the market, unique steps ought to be taken whilst making use of urea to the soil to save you the lack of nitrogen via a chemical response. Urea become first produced industrially via way of means of the hydration of calcium cyanamide however the smooth availability of ammonia brought about the improvement of ammonia/carbon dioxide technology. This is a -step technique wherein the ammonia and carbon dioxide react to shape ammonium carbamate that is then dehydrated to urea. In the technique, ammonia and carbon dioxide are fed to the synthesis reactor which operates round 180-210oC and one hundred fifty bar pressure. The response aggregate containing ammonia, ammonium carbamate, and urea is first stripped of the ammonia and the ensuing answer passes via some of decomposers running at steadily decreased pressures. Here the unconverted carbamate is decomposed again to ammonia and carbon dioxide and recycled to the reactor.
The Urea Fertilizers answer is focused via way of means of evaporation or crystallization, and the crystals may be melted to yield natural urea withinside the shape of prills or granules. Prills are made via way of means of spraying molten urea from the pinnacle of a excessive tower via a counter-contemporary air stream. Granular urea is fashioned via way of means of spraying molten urea right into a aggregate of dried urea debris and fines in a rotating drum. Urea procedures fall into categories: outside answer recycle systems, and inner answer stripping systems. In the former, electricity is stored via way of means of excessive carbon dioxide conversion charges at the same time as the latter reduces internet electricity necessities via way of means of optimizing warmness recovery.
Advantage of Urea Fertilizers
May be implemented to soil as a stable or answer or to positive plants as a foliar spray.
- Urea utilization includes very little hearthplace or explosion hazard.
- Urea’s excessive evaluation, forty six% N, enables lessen managing, garage and transportation charges over different dry N bureaucracy.
- Urea manufacture releases few pollution to the environment.
- Urea, whilst well implemented, outcomes in crop yield will increase same to different sorts of nitrogen.
- Incorporate urea for fine use
Disadvantages of Urea Fertilizers
- Urea has numerous advantages, such as value in keeping with pound of nitrogen, better nutrient density, and true managing and garage properties.
- The largest downside is the capacity for volatilization. This takes place whilst urea is surface-implemented and transformed to ammonium carbonate via way of means of urease.
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