Generally, the ammonia present in ammonium Nitrate react with P2O5 make ammonium Phosphate which is the another useful fertilizer of P and N

6NH3 +P2O5+H2O =2(NH4)3PO4

P 2 O 5 also Dehydrating agents .and ammonium Nitrate is highly soluble in water.

And P2O5 is very hygroscopic and used as a drying agent, which means it absorbs moisture and make phosphoric acid. Hence the chemically it is very difficult to separate but you can change temperature for varying solubility.

Separating ammonium nitrate (NH₄NO₃) and phosphorus pentoxide (P₄O₁₀) can be challenging due to their chemical properties and potential reactions. However, here are some potential methods you might consider:

1. Differential Solubility

Principle: Ammonium nitrate is highly soluble in water, while phosphorus pentoxide reacts with water to form phosphoric acid.

Procedure:

Caution: The reaction of phosphorus pentoxide with water is highly exothermic and produces phosphoric acid, which is corrosive.

2. Chemical Reactions and Extraction

Principle: Use selective chemical reactions to convert one of the compounds into a form that can be separated.

Procedure:

Caution: Heating ammonium nitrate can be hazardous and should be conducted with proper safety measures in place.

3. Solvent Extraction

Principle: Utilize solvents that selectively dissolve one compound but not the other.

Procedure:

Caution: Ensure to handle solvents in a well-ventilated area and follow safety protocols.

Summary

• Differential Solubility: Dissolve the mixture in water, filter, and evaporate.
• Chemical Reactions: Decompose ammonium nitrate by heating, then handle phosphorus pentoxide.
• Solvent Extraction: Use acetone to selectively dissolve ammonium nitrate and filter out phosphorus pentoxide.

Each method has its advantages and limitations, and the choice of method should consider safety, available equipment, and the specific context of the separation process.