CaCl₂ + H₂C₂O₄ → 2 HCl + CaC₂O₄

Reactants:

• CaCl₂ – Calcium chloride
  • Other names: Calcium(II) chloride , Calcium dichloride , E509 ... show moreCalcium chloride (anhydrous) , Calcium chloride anhydrous , CaCl2 , Calcium chloride, anhydrous , Calcium Chloride , Calcium(2+) chloride show less
  • Appearance: White powder, hygroscopic ; Odourless hygroscopic colourless or white crystals
• H₂C₂O₄ – Oxalic acid , Ethanedioic acid
  • Other names: Wood bleach , Oxalic acid dihydrate , H2ox ... show moreHOOCCOOH , Ethane-1,2-dioic acid , Oxalate , Ethanedioic acid dihydrate , Oxalic acid diammonium salt , Oxalic acid anhydrous , Ethane-1,2-dioate , Kyselina stavelova , Ethanedionic acid , Ethanedioate , Oxalic acid 2-Hydrate , Ethanedionate , Oxaalzuur , Oxalic Acid , Oxalic acid (aqueous) show less
  • Appearance: White crystals ; Hygroscopic colourless crystals or white powder ; Colorless, odorless powder or granular solid. [Note: The anhydrous form (COOH)2 is an odorless, white solid.]

Products:

• HCl – Chlorane , Hydrogen chloride
  • Other names: Hydrochloric acid , M , Uriatic acid ... show moreHydronium chloride , Chlorhydric Acid , Hydrochloric acid gas , HCl , Anhydrous hydrogen chloride , Hydrochloric acid, anhydrous , Aqueous hydrogen chloride , [Note: Often used in an aqueous solution.] show less
  • 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.]
• CaC₂O₄
  • Names: Calcium oxalate