Potassium iodide starch paper, Type MN 816 N (Reel of 5M length and 7mm width)

• Allows the quick and easy detection of strong oxidizers such as nitrite and free chlorine

• Also used to control diazotization reactions

• Nitrite or free chlorine oxidize potassium iodide to form elemental iodine which reacts with starch to a blue-violet complex

• Potassium iodide starch paper may be used by dipping it into the sample or by applying drops of the sample onto the paper

• To detect gaseous oxidizers, the paper is moistened with distilled water and then exposed to the gas in question

• MN 816 N is especially suited to be dipped into solutions as you can choose the required test paper length simply by tearing it

• Colour reaction: white to blue-violet

• Limit of sensitivity: 1 mg/l NO2- / 1 mg/l free Cl2