Spectrophotometric, Solvent Extraction and Chelate Formation Study of Divalent Iron with Triazine in Presence of Large Exceues of Trivalent Iron

A comparative study of 4 substituted derivatives of symmetrical and ummetrical triazines as chromogenic reagents of the ferroin type has established 3-(2-pyridyl}-S, 64ip­henyl-l,2,4-triazine (PDn, as a highly sensitive and selective reagent for divalent iron PleseDt in association with large amount of iron (1lI). The ease with which the lUghly colowed metal ions can be extracted into immilCible solvent to give stable solution, makes this reagent useful for the determina­tion of traces of ln (U) present in a mixture L f lron(ll) and Iron(llI).

I ARAIN ,M H MEMON ,I H HASHMI ,