Analysis of Ammonium Nitrate
The Analysis of Ammonium Nitrate is part of the salt analysis and a schematic scheme is followed for the analysis of the given inorganic salt.
The analysis of Ammonium Nitrate to be written in a practical file is mentioned below
| Test | Observation | Inference |
| Preliminary Test | ||
| Color | Colorless | Salts of Cu2+, Ni2+, Co3+, CrO4 2- , Fe3+ etc. may be absent |
| Odor | Ammonical odor | NH4 1+ ions may be present |
| Dry Test: | ||
Dilute Sulphuric acid test: Take 0.5 gm of Salt and then add Dilute H2SO4 | No Effervescence of CO2 | CO3 2- ions absent |
Concentrated Sulphuric Acid Test: Take 0.5 gm of salt and then add Concentrated H2SO4 dropwise from the side of the test tube if nothing happens add Cu foils and heat gently | Reddish Brown gas evolved | NO3 1- ions Present |
Confirmative test for Nitrate ions | ||
Cu Foil Test: Take 0.5 gm of Salt add Cu foils and then add Concentrated H2SO4 Solution | Reddish Brown Fumes | NO3 1- Ions confirmed |
Ring Test: Take 0.5 gm of salt and add DM water and then add Freshly prepared FeSO4 Solution. Mix the solutions then add Conc. H2SO4 dropwise through the wall of test-tube | Brown Ring Formation | NO3 1- Ions confirmed |
The acidic radical present in the salt is NO3 1– ion | ||
Test for Basic radicals (Wet Test) | ||
Solubility 2 gm of salt and add water | Clear solution (original Solution (O.S.)) | Water soluble salt. |
O.S. + Dilute NaOH Take 5 ml of O.S. and add Dilute NaOH solution if required heat gently | Ammonical odor | Group 1 Present NH4 1+ ions present |
Confirmative Test for NH4 1+ ions | ||
O.S. + Conc. NaOH | Strong Ammonical Odor | NH4 1+ ions Confirmed |
O.S. + Nessler’s Reagent | Yellow-orange ppt’s | NH4 1+ ions Confirmed |
The Basic radicals are NH4 1+ ions | ||
The Salt is NH4NO3 (Ammonium Nitrate) | ||