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Use of Some Metal Ferrites as Catalyst in Haloform Reaction

Neha Godha*, Suresh C Ameta

Zinc ferrite was used to catalyse the haloform reaction of potassium iodide and acetone in the presence of sodium hypochlorite solution. Zinc ferrite was prepared by hydrothermal process. It was characterized by Field Emission Scanning Electron Microscopy (FESEM), X-Ray Diffraction spectroscopy (XRD), and Energy Dispersive X-Ray spectroscopy (EDX). The crystalline size of zinc ferrite was found to have 6.62 nm and these are irregular in shape. It was found that the yield of the product (iodoform) in the presence of Zn ferrite was 38.6%, which is almost 1.8 times the yield obtained in the absence of catalyst. A comparative study was made with different metal ferrites as catalyst and it was found that the activity of metal ferrites followed the order: ZnFe2O4>MgFe2O4 >CoFe2O4>CuFe2O4>NiFe2O4.