Iron test paper • Quick and easy determination of iron • This test paper is used for the rapid detection of iron ions (Fe2+ and Fe3+). • In contrast to Dipyridylpaper it reacts with Fe(II) as well as Fe(III) ions. • For the specific detection of Fe(II) please use Dipyridylpaper . Product data • Presentation: Pack of 100 strips 20x70 mm • Color reaction: yellow-white → red-brown • Limit of sensitivity: 10 mg/l Fe2+ or Fe3+