Cr₂O₃ + 2 K₂CO₃ + 3 KClO₃ → 2 K₂CrO₇ + 3 KCl + 2 CO₂

This is an oxidation-reduction (redox) reaction:

KClO₃ is an oxidizing agent, Cr₂O₃ is a reducing agent.

Reactants:

• Cr₂O₃
  • Names: Chromium(III) oxide , Chromium sesquioxide , Chromia ... show moreChrome green , Eskolaite , Dichromium trioxide , Chromium(iii) oxide , Green oxide of chromium , Green chromium oxide , Chromium(III) sesquioxide , Chromic oxide show less
  • Appearance: Light to dark green, fine crystals ; Light-to-dark-green powder
• K₂CO₃ – Potassium carbonate
  • Other names: Carbonate of potash , Dipotassium carbonate , Sub-carbonate of potash ... show morePearl ash , Potash , Salt of tartar , Salt of wormwood. , Potassium carbonate (anhydrous) , K2CO3 , Carbonic acid, dipotassium salt , Potassium carbonate, anhydrous , Kaliumcarbonat , Potash, sulfurated show less
  • Appearance: White, hygroscopic solid ; Colourless hygroscopic crystals or hygroscopic white powder
• KClO₃
  • Names: Potassium chlorate , Potassium chlorate(V) , Potcrate , Potassium oxymuriate
  • Appearance: White crystals or powder ; Colourless crystals or white powder

Products:

• K₂CrO₇
• KCl
  • Names: Potassium chloride , Sylvite , Muriate of potash ... show moreKlor-Con M15 , K-Lease , Klor-Con 8 , K+10 , K+8 , Klor-Con M10 , Micro-K 10 , Kato , Kaon Cl-10 , Kaon-Cl , Kaon Cl , Micro-K , Klor-Con 10Meq , Klor-Con 10 , Micro-K Ls , K-dur , Klor-Con , Klor-Con M20 , Slow-K , Ten-K , Klotrix , [KCl] , Kaliumchlorid , Chloride of potash , Kaon-CL 10 , Klor-CON , KCl , Monopotassium chloride , K-Tab , Chlorid draselny , Potassium Chloride show less
  • Appearance: White crystalline solid ; Colourless hygroscopic crystals
• CO₂
  • Names: Carbon dioxide , {{plainlist| , CO2 ... show moreCarbonic acid gas , Dry ice , [CO2] , Carbonic anhydride , R-744 , E-290 , E 290 , E290 , Carbonic acid anhydride , Carbon-12 dioxide , Methanedione , Carbon oxide , CO₂ , [Note: Normal constituent of air (about 300 ppm)]. show less
  • Appearance: Colorless gas ; Odourless colourless compressed liquefied gas ; Colorless, odorless gas. [Note: Shipped as a liquefied compressed gas. Solid form is utilized as dry ice.]