Potassium Dichromate Lab Grade pure Laboratory Chemicals supplier and Exporter.
Potassium Dichromate is commonly used in acid solution to standardize Ferrous salt solutions using Ferroin indicator:
Cr2O72- + 6 Fe2+ + 14 H+ → 2 Cr3+ + 6 Fe3+ + 7 H2O
Potassium Dichromate is also used to standardize Sodium Thiosulfate solutions. In acidic solution, Potassium Dichromate oxidizes Potassium Iodide to Iodine; the Iodine thus generated can then be titrated with the Thiosulfate solution using Starch Indicator: