The possibility of formating a colored complex between Fe2+ ions and 4-Hydroxy-3-
[[(2-hydroxy phenyl) methylene] amino] benzene Sulphonic Acid (HVMAB) was studied
spectrophotometric method for determination of iron in aqueous solutions. The reagen
t
reacts in aqueous medium at pH=5 to give an orange complex with maximum absorbance
λmax=415nm.