2Na2[Fe(NO)(CN)5] + 10H2SO4 + 10H2O → 2Na2SO4 + Fe2(SO4)3 + 2NO + 5(NH4)2SO4 + 10CO
Sodium pentacyanonitrosylsferrate(II) react with sulfuric acid and water to produce sodium sulfate, iron(III) sulfate, nitric oxide, ammonium sulfate and carbon monoxide. Sulfuric acid - concentrated solution. The reaction takes place in a boiling solution.