Acids:
* Strong acids like hydrochloric acid (HCl) and nitric acid (HNO₃) will readily dissolve tin oxide.
* Reaction with HCl: SnO₂ + 4 HCl → SnCl₄ + 2 H₂O
* Reaction with HNO₃: SnO₂ + 4 HNO₃ → Sn(NO₃)₄ + 2 H₂O
* Concentrated sulfuric acid (H₂SO₄) will also dissolve tin oxide upon heating.
Note: The dissolution of tin oxide in acids usually results in the formation of the corresponding tin(IV) salt and water.
Bases:
* Strong bases like sodium hydroxide (NaOH) and potassium hydroxide (KOH) will dissolve tin oxide, forming stannate ions ([SnO₃]²⁻) in solution.
* Reaction with NaOH: SnO₂ + 2 NaOH → Na₂SnO₃ + H₂O
The choice of acid or base for dissolving tin oxide depends on the specific application and the desired reaction products.
