3Sb + 18HCl + 5HNO3
3H[SbCl6] + 5NO2 + 10H2O
Аntimony react with hydrogen chloride and sulfuric acid to produce hydrogen hexachloridoantimonate(V), nitrogen dioxide and water. Hydrogen chloride and nitric acid - concentrated solutions. This reaction takes place at a temperature of 30-40°C.