Ammonium bicarbonate
Ammonium bicarbonate compound [1] is a kind of white, granular, tabular or columnar crystal. As ammonium bicarbonate is a kind of carbonate, so must not be placed together with acid, as acid can react with ammonium bicarbonate generates carbon dioxide, ammonium bicarbonate metamorphism. But rural also has use of ammonium bicarbonate and acid reaction of this nature, ammonium bicarbonate is placed within the vegetable greenhouses, sealing, greenhouses and ammonium bicarbonate in the high places, to join the dilute hydrochloric acid. At this time, ammonium bicarbonate and hydrochloric acid reaction, producing ammonium chloride, water and carbon dioxide. Co2 can promote plant photosynthesis, and increase yield of vegetable, and generate the ammonium chloride is also can be used as fertilizer again. In the chemical formula which best characterizes the ammonium bicarbonate ammonium ions, is a kind of ammonium salt
Around 1920, by using coke oven gas found in the reaction of ammonia and carbon dioxide can be preparing ammonium bicarbonate, someone tried to put it as a nitrogen fertilizer use, but unsuccessful. Only a small amount of production for a long time, mainly used as foaming agent in food industry. In 1958, is an urgent need to the development of fertilizer industry in China, by chemical experts Hou Debang successful development of a new process for producing ammonium bicarbonate. Is characterized by the production of ammonium bicarbonate and ammonia feed gas purification process (removing carbon dioxide) combined with ammonium bicarbonate method called union carbon production process, so as to simplify the process, reduce the energy consumption and reduce the investment. Based on ammonium bicarbonate property improvements and application techniques of constantly improve, it obtained the rapid development in China, in the early 1980 s production accounted for about more than half of China's total nitrogen fertilizer production.
Ammonium bicarbonate, referred to as "producyion, weighing ammonium carbonate, nitrogen content at about 17%. Single product is white powder crystal, industrial supplies slightly gray hair, and the smell of ammonia. Ammonium bicarbonate water content about 5% commonly, easy deliquescence, easy to agglomerate. Temperature below 20 ℃ is relatively stable, the temperature is a little higher or product moisture exceeds a certain standard, ammonium bicarbonate will be broken down into ammonia and carbon dioxide, the gas from the air, nitrogen fertilizer effect of loss. Therefore, there are 6 avoid using ammonium bicarbonate.
1
Avoid spraying on the leaf ammonium bicarbonate on crop leaves have strong corrosion resistance, easy to burn blade, affect photosynthesis, it cannot be a fertilizer spraying on the leaf.
2
Avoid dry soil applied dry soil covered with deep, fertilizer is not dissolved in time to be absorbed by the soil adsorption and for crop use. Only in the soil with certain humidity under the condition of application of ammonium bicarbonate, can dissolve in a timely manner.
3
Cream with alkaline fertilizer mixing ammonium bicarbonate shi if mixed with alkaline strong plant ash, lime and other application or applied at the same time, applied to lose, so the ammonium bicarbonate to fertilization.
4
Avoid is mixed with inorganic feilizer ammonium bicarbonate after shi will send out a certain concentration of ammonia, if contact with bacterial manure, can make the researches of the dead live bacteria, bacterial manure production effect.
5
Avoid is mixed with ammonium bicarbonate and calcium superphosphate superphosphate blend overnight application not long after, more can't spend the night, because calcium superphosphate moisture absorption increases, will make compost slurry or agglomerate, cannot use.
6
Avoid is mixed with urea, ammonium bicarbonate shi shi into the soil, causing soil solution short-term acidic reaction, will accelerate the volatilization loss of urea, we cannot mixed with urea, ammonium bicarbonate fertilizer.
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