H5IO6 → 2 H2O + HIO4
Reactants:
- H5IO6
- Names: Periodic acid

, P
, Araperiodic acid|Iodic(VII) acid|Hydrogen periodate}}
Orthoperiodic acid
, H5IO6
, [IO(OH)5] 
- Appearance: Colourless crystals

Products:
- H2O – Water, oxidane

- Other names: Water (H2O)
, Hydrogen hydroxide (HH or HOH)
, Hydrogen oxide
Dihydrogen monoxide (DHMO) (systematic name)
, Hydrogen monoxide
, Dihydrogen oxide
, Hydric acid
, Hydrohydroxic acid
, Hydroxic acid
, Hydrol
, Μ-oxido dihydrogen
, Κ1-hydroxyl hydrogen(0) 
- Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas

- HIO4
- Names: Metaperiodic acid
, Periodic acid 