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How to obtain ammonium nitrate

How to obtain ammonium nitrate

Ammonium nitrate NH4NO3 - is a salt of nitric acid medium. It is a white crystalline substance.

It is widely used in industry and miningcase as a mixture of ammonium nitrate with different types of fuels and explosives. Most of the ammonium nitrate used as a good nitrogen fertilizer or as a product from the preparation of other fertilizers.

There are three ways to get more salt.

One is known as a method Odd or nitrophosphate method.

You will need

  • nitric acid, water, sodium phosphate (apatite), the tubes



Take apatite. Natural calcium phosphate - class mineral phosphates, pale green, blue, yellow-green or pink color with a glassy luster. Place a small amount of a substance in a test tube.


Then dissolve calcium phosphate carefully. To this, add the water and nitric acid. During the reaction, formation of calcium nitrate, phosphoric acid and voda.Ca3 (PO4) 2 + 6HNO3 + 12HOH> 2H3PO4 + 3Ca (NO3) 2 + 12HOH


Cool the resulting solution to 0 C. Thus obtained calcium nitrate crystallizes, forming a complex compound, Ca (NO3) 2 4HOH -? Calcium nitrate tetrahydrate.


Separate connection of phosphoric acid. This white substance, light gray, light beige color.


In the resulting crystalline solid andremote phosphoric acid exposure to ammonia. As a result, a white precipitate of calcium phosphate and the desired ammoniya.Ca nitrate (NO3) 2 + 4H3PO4 + 8NH3> CaHPO4v + 2NH4NO3 + 3 (NH4) 2HPO4

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