Na2[Fe(NO)(CN)5] + NaOH + 2NH3 → Na3[Fe(NH3)(CN)5] + N2 + 2H2O
Sodium pentacyanonitrosylsferrate(II) react with sodium hydroxide and ammonia to produce sodium pentacyanoammineferrate(II), nitrogen and water. This reaction takes place at a temperature of 0-10°C.