38 HCl (aq) + 11 KMnO4 (aq) + 5 KSCN (aq) → 19 H2O (l) + 5 CO2 (g) + 5 NO (g) + 16 KCl (aq) + 5 SO2 (aq) + 11 MnCl2 (aq)
This is an oxidation-reduction (redox) reaction:
11 MnVII + 55 e- → 11 MnII (reduction)
5 S-II - 30 e- → 5 SIV (oxidation)
5 N-III - 25 e- → 5 NII (oxidation)
KMnO4 is an oxidizing agent, KSCN is a reducing agent, KSCN is a reducing agent.
This is a gas evolution reaction, CO2 and NO is the formed gas.
Reactants:
- HCl – Chlorane , Hydrogen chloride
- Other names: Hydrochloric acid , M , Uriatic acid
- Appearance: Colorless, transparent liquid, fumes in air if concentrated ; Colorless gas ; Colourless compressed liquefied gas with pungent odour ; Colorless to slightly yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.]
- KMnO4 – Potassium manganate(VII)
- KSCN
Products:
- H2O – Water, oxidane
- CO2
- NO – Nitrogen monoxide , Oxidonitrogen(•) (additive)
- KCl
- SO2 – Sulfur dioxide
- Other names: Sulfurous anhydride , Sulphur dioxide , Sulfurous acid anhydride
- Appearance: Colorless gas ; Colourless gas or compressed liquefied gas with pungent odour ; Colorless gas with a characteristic, irritating, pungent odor. [Note: A liquid below 14°F. Shipped as a liquefied compressed gas.]
- MnCl2 – Manganese(II) chloride , Manganese dichloride