Phosphate (PO4)

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AIM: – To identify the given inorganic compound for its acidic and basic radical.

APPARATUS:- Chemical Reagent, Test Tube, Test Tube holder, Spatula

PROCEDURE:-

Preliminary Test:-

Experiment Obervation Inference
Added dilute sulphuric acid to given salt. No effect. Carbonate, sulphide , sulphite, nitrate absent.
Added concentrated sulphuric acid to given salt. No effect. Nitrate, Bromide, Chloride,  Acetate, absent. Sulphate or phosphate may be present.

Confirmatory Test:-

Experiment Observation Inference
Added soda extract and diluted nitric acid and then added Ammonium Molybdate solution. A canary yellow precipitate formed. Phosphate confirmed.

Chemical Equations:-

(NH4)2(NO3)+2Na2(PO4) –> 2(NH4)(PO4)+2Na2(NO3)

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