In fact, because lime and urea are likely to absorb water and have water, they will produce a small amount of ammonia.
Because urea will hydrolyze to form ammonium carbonate.
CO(NH2)2 + 2H2O =(NH4)2CO3
Ammonium carbonate reacts with hydrated lime to generate NH3.
It mainly depends on whether the environment can absorb water but not produce it, and there is water to produce it.
Extended data:
Urea is an organic compound composed of carbon, nitrogen, oxygen and hydrogen, also known as urea (the homonym of urine). Its chemical formula is CON2H4, (NH2)2CO or CN2H4O, its molecular weight is 60, and its international drug name is urea.
The appearance is white crystal or powder. It is the product of protein metabolism in animals and is usually used as nitrogen fertilizer for plants. Urea is synthesized in the liver and is a nitrogen-containing metabolite excreted by mammals. This metabolic process is called urea cycle. Urea is the first organic compound obtained by artificial synthesis of inorganic substances.
Hydrated lime, also known as calcium hydroxide, can prevent poisoning. Its dust or suspension droplets can irritate mucous membrane, cause sneezing and coughing, saponify fat like alkali, absorb skin moisture, dissolve protein, irritate and corrode tissues.
Inhaling lime dust may cause pneumonia. The maximum allowable concentration is 5 mg/m3. When inhaling dust, you can inhale steam, codeine and Youning, and apply mustard cream on your chest; If it falls into eyes, rinse it with running water as soon as possible, and then use 5% ammonium chloride solution or 0.0 1%CaNa? -Rinse with -EDTA solution, and then drop 0.5% tetracaine solution.
Pay attention to protect respiratory organs when working, wear overalls, gloves and closed dustproof glasses made of dustproof fibers, and apply grease ointment to prevent inhalation of dust.
References:
Baidu encyclopedia-urea
References:
Baidu encyclopedia-calcium hydroxide