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[95] [102] Uranium-238 concentrations can range from 7 to 100 pCi/g (picocuries per gram) in phosphate rock [103] and from 1 to 67 pCi/g in phosphate fertilizers. [ 104 ] [ 105 ] [ 106 ] Where high annual rates of phosphorus fertilizer are used, this can result in uranium-238 concentrations in soils and drainage waters that are several times ...
Urea phosphate is a 1:1 combination of urea and phosphoric acid that is used as a fertilizer. It has an NPK formula of 17-44-0, [ 1 ] and is soluble in water, producing a strongly acidic solution. Urea phosphate is available in fertilizer vendor bags that carry a UP signet on the packaging.
Diammonium phosphate (DAP; IUPAC name diammonium hydrogen phosphate; chemical formula (NH 4) 2 (HPO 4)) is one of a series of water-soluble ammonium phosphate salts that can be produced when ammonia reacts with phosphoric acid. Solid diammonium phosphate shows a dissociation pressure of ammonia as given by the following expression and equation: [2]
Water De-mineralizing plant – 120 m 3 /h capacity. Nitrogen plant – 650 Nm 3 /h of gaseous nitrogen and equivalent 50 Nm 3 /h of liquid nitrogen. Instrument Air Compressor with Instrument Air drier – 1,500 Nm 3 /h capacity. Product Handling – There are four streams for Urea and three streams for phosphatic fertilizers for bagging and ...
At 200 °C the hexa-phosphate is produced. At 250 °C the typical chain length is 18. Heating hydrated salts induces the loss of ammonia to form oligophosphates and polyphosphates. [3] Diamidophosphate inhibits urease enzymes by blocking up the active site, binding to two nickel centers. Diamidophosphate mimics the urea hydrolysis intermediate. [5]
Phosphate rich organic manure is a type of fertilizer used as an alternative to diammonium phosphate and single super phosphate. Phosphorus is required by all plants but is limited in soil, creating a problem in agriculture In many areas phosphorus must be added to soil for the extensive plant growth that is desired for crop production.
Ammonium dihydrogen phosphate (ADP), also known as monoammonium phosphate (MAP) [5] is a chemical compound with the chemical formula (NH 4)(H 2 PO 4). ADP is a major ingredient of agricultural fertilizers [6] and dry chemical fire extinguishers. It also has significant uses in optics [7] and electronics. [8]
Triammonium phosphate can be prepared in the laboratory by treating 85% phosphoric acid with 30% ammonia solution: [citation needed] H 3 PO 4 + 3 NH 3 → (NH 4) 3 PO 4 (NH 4) 3 PO 4 is a colorless, crystalline solid. The solid, which has the odor of ammonia, is readily soluble in water. The salt converts to diammonium hydrogen phosphate (NH 4 ...
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