6 KMnO4 + 6 H3PO4 + 15 NaNO2 → 9 H2O + 15 NaNO3 + 2 K3PO4 + 2 Mn3(PO4)2

This is an oxidation-reduction (redox) reaction:

6 MnVII + 30 e- → 6 MnII (reduction)

15 NIII - 30 e- → 15 NV (oxidation)

KMnO4 is an oxidizing agent, NaNO2 is a reducing agent.

Reactants:

  • KMnO4 – Potassium manganate(VII) source: wikipedia, accessed: 2019-09-27
    • Other names: Potassium permanganate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Chameleon mineral source: wikipedia, accessed: 2019-09-27, Condy's crystals source: wikipedia, accessed: 2019-09-27
    • Appearance: Purplish-bronze-gray needles | magenta–rose in solution source: wikipedia, accessed: 2019-09-27; Dark purple crystals source: ICSC, accessed: 2019-09-04
  • H3PO4
    • Names: Phosphoric acid source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Orthophosphoric acid source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Phosphoric(V) acid source: wikidata, accessed: 2019-09-02
    • Appearance: Hygroscopic colourless crystals source: ICSC, accessed: 2019-09-04; Thick, colorless, odorless, crystalline solid. [Note: Often used in an aqueous solution.] source: NIOSH NPG, accessed: 2019-09-02
  • NaNO2
    • Names: Sodium nitrite source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, 7632-00-0 source: wikidata, accessed: 2019-09-02, E250 source: wikidata, accessed: 2019-09-02
    • Appearance: White or slightly yellowish solid source: wikipedia, accessed: 2019-09-27; Hygroscopic white-to-yellow solid in various forms source: ICSC, accessed: 2019-09-04

Products:

  • H2O – Water, oxidane source: wikipedia, accessed: 2019-09-27
    • Other names: Water (H2O) source: wikipedia, accessed: 2019-09-27, Hydrogen hydroxide (HH or HOH) source: wikipedia, accessed: 2019-09-27, Hydrogen oxide source: wikipedia, accessed: 2019-09-27
    • Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas source: wikipedia, accessed: 2019-09-27
  • NaNO3 – Sodium nitrate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04
    • Other names: Peru saltpeter source: wikipedia, accessed: 2019-09-27, Soda niter source: wikipedia, accessed: 2019-09-27, Cubic niter source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Appearance: White powder or colorless crystals source: wikipedia, accessed: 2019-09-27; Colourless hygroscopic crystals source: ICSC, accessed: 2019-09-04
  • K3PO4 – Potassium phosphate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Potassium tetraoxidophosphate(3−) source: wikipedia, accessed: 2019-09-27
    • Other names: Tripotassium phosphate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Tribasic source: wikipedia, accessed: 2019-09-27, Tribasic potassium phosphate source: wikidata, accessed: 2019-09-02
    • Appearance: White deliquescent powder source: wikipedia, accessed: 2019-09-27
  • Mn3(PO4)2 – Manganese (II) Phosphate source: wikipedia, accessed: 2019-09-27
    • Other names: Manganese(II) phosphate source: wikipedia, accessed: 2019-09-27, Manganese diphosphate; Manganese phosphate tribasic source: wikipedia, accessed: 2019-09-27