5TiN + 38HF + KMnO4 → 5H2[TiF6] + MnF2 + 5NH4F + KF + 4H2O
Titanium nitride react with hydrogen fluoride and potassium permanganate to produce hexafluorotitanate(IV) hydrogen, manganese(II) fluoride ammonium fluoride and water. Hydrogen fluoride - concentrated solution.