Analytical Application of the Schiff Bases. Spectrophotometric Determination of Iron(III) with Disodium Salt of the Schiff Base Derived from 3-Aldehydosalicylic Acid and Ethylenediamine

Disodium salt of the schiff base, ethylenediamine-3-aldehydosalicylic arid, has hem used an a reagent for speatrophotornotric estimation of the tervalent iron. Optical density has been measured at 480 mμ. and at pH range 7.2-11.5- The reddish yellow colour is developed inatantaneonaly and is stable for about 24 hr. Sensitivity (Sandell) of tits reagent ilea boon found to be 0.022 \(\gamma\)Fe/cm2. The interference once of cerium loos in the measurement of the colour and the probable composition of the coloued srecies in solution have been studied.