International Journal of Academic and Applied Research (IJAAR)   Year: 2024 | Volume: 8 | Issue: 5 | Page No.: 42-48 Preparing Magnetite Nanoparticles Ferro Fluid Download PDF Laith saheb,Karrar AbdAli, Rahman own, Mara sarmad Abstract: In this project, we synthesize magnetic Ferro fluid based on magnetite nanoparticles. Our goal was to develop cost-effective and affordable methods to synthesize stable form of Ferro fluid under aerobic conditions. Mixed of two bivalent and trivalent iron salts were mixed to synthesize the magnetite composite. The oleic acid based coating in an alkaline condition was employed as protective cover for the synthesized nanoparticles in order to prevent the undesired aggregation. The size of the particles was measured using a Scanning Tunneling Microscope (STM). The optimum conditions were studied by testing different mixing times and Fe(III)/Fe(II) stoichiometric ratios. The mixing ratio of 1.3:1 was found to be the optimum stoichiometric ratio for synthesizing the nano-magnetite in this study.