3 H₂O + As₂O₅ → 2 H₃AsO₄

Reactants:

• H₂O – Water, oxidane
  • Other names: Water (H2O) , Hydrogen hydroxide (HH or HOH) , Hydrogen oxide ... show moreDihydrogen monoxide (DHMO) (systematic name) , Hydrogen monoxide , Dihydrogen oxide , Hydric acid , Hydrohydroxic acid , Hydroxic acid , Hydrol , Μ-oxido dihydrogen , Κ1-hydroxyl hydrogen(0) show less
  • Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas
• As₂O₅
  • Names: Diarsenic pentoxide , Arsenic(V) oxide , Arsenic oxide ... show moreArsenic anhydride , Arsenic pentoxide , Arsenic (V) oxide , Arsenic acid anhydride show less
  • Appearance: White hygroscopic powder ; White hygroscopic powder

Products:

• H₃AsO₄ – Arsenic acid, arsoric acid
  • Other names: Arsenic acid , Orthoarsenic acid , Desiccant L-10 ... show moreZotox , Arsenic acid (80% in water) , H3AsO4 , [AsO(OH)3] , Arsoric acid , Arsenic acid hemihydrate , Ortho-Arsenic acid solution show less
  • Appearance: White translucent crystals | hygroscopic. ; Colourless-to-pale-green-viscous liquid