Bismuth test paper • Quick and easy determination of bismuth • This test paper allows the rapid detection of Bismuth. • In the presence of bismuth ions (Bi3+) it shows an orange-red discoloration on a pale-yellow background. Product data • Presentation: Pack of 200 strips 20x70 mm • Color reaction: pale-yellow → orange-red • Limit of sensitivity: 60 mg/l Bi3+ (Nitric acid >3% leads to reduced sensitivity)