Sb2O3 + 4[Ag(NH3)2]NO3 + 6NaOH + 3H2O
4Ag + 2Na[Sb(OH)6] + 8NH3 + 4NaNO3
Antimony(III) oxide react with diamminesilver(I) nitrate, sodium hydroxide and water to produce silver, sodium hexahydroxoantimonate(V), ammonia and sodium nitrate. Sodium hydroxide - concentrated solution. This reaction takes place in a boiling solution.