Fertiliser Technology
Electric process as compared to wet process (for the manufacture of phosphoric acid)

Is used less frequently
Can use only high grade phosphate rock
Produces a valuable by-product called gypsum
Is weak acid process

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Fertiliser Technology
Ammonium nitrate is

Not hygroscopic
Having about 40% N₂
Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer
Not prone to explosive thermal decomposition

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