Effect of EDTA and Phosphate on Particle Size during Precipitation of Nanosized BaSO4Particles

Abstract Barium sulfate particles with average size of 16 nm and 203 nm were successfully synthesized by precipitation method at 25 °C. The characterization of BaSO4 particles were performed by X-ray diffraction (XRD), transmission electron microscopy (TEM). It was found that the selected reaction conditions played an important role in controlling the size of particles. The difference in morphology of BaSO4 particles mainly depends on the different additives during the precipitation process.