The Definitive Guide to chemical oxygen demand test
From the existence of sulfuric acid, silver sulphate, and mercury sulphate, potassium dichromate oxidises the natural and organic issue contained during the water sample to make carbon dioxide (CO2) and h2o (H2O). The level of potassium dichromate utilised is set by evaluating the volumes of ferrous ammonium sulphate consumed during blank and sampl