5K2RuO4 + 8H2SO4 + 2KMnO4 → 5RuO4 + 2MnSO4 + 6K2SO4 + 8H2O
Potassium ruthenate react with sulfuric acid and potassium permanganate to produce ruthenium(VIII) oxide, manganese(II) sulfate, potassium sulfate and water. Sulfuric acid - concentrated solution.