Charge-Transfer Complexometric Study of Ferric Ion with 4-Chloro-2,6-bis(hydroxymethyl)phenol in a Methanol-Water System Using Spectrophotometric and Potentiometric Methods

摘要

Complex formation between ferric ions and 4-chloro-2,6-bis(hydroxymethyl)phenol in 0.3 mole fraction of methanol and 0.10 M tetraethylammoniumbromide as inert ionic medium has been studied at 25.0 °C using spctrophotometric and potentiometric methods.This charge-transfer complex has a strong absorbance in 580 nm.Ferro ions do not have any significant interaction with this ligand.In both Spectrophotometric and potentiometric methods,it was found that only the MLH_2 and MLH_3 species are formed in the pH range 2.0 to 11.5.The M:L ratio of the complex is also obtained by continuous variation and mole ratio methods,which is equal to 1:1 for this complex.