Test paper Potassium iodide starch paper 1 box (20 sheets x 10 pieces) 07810070 1 box (20 sheets x 10 pieces)

It is used to detect oxidants such as chlorine, bromine, ozone, and nitrous acid in sulfuric acid. In the presence of oxidizing agents, it changes from white to blue. Color develops in the presence of hypochlorite (ClO-2mg/L or more) and nitrite (NO2-3mg/L or more). Potassium iodide is oxidized by an oxidizing agent to form iodine, which reacts with starch to produce a blue color. It is used to test residual chlorine concentration. It can be used to detect nitrous acid during the diazotization process in dye factories. Dimensions: 7mm x 70mm Quantity: 1 box (20 sheets x 10 packs)