The ball milling time affects the magnetic properties its product. Research on the magnetic properties and the product composition of natural sand of the Rokan River as a function of optimum time in ball milling has been ...

Indonesia has abundant natural sand and there are natural magnetic minerals, one of which is iron sand. Where one of the purposes of this iron sand is to purify water that is contaminated by dyes. To increase its ability ...

Investigation of natural sand originating from the Rokan river in Riau Province by turning it into magnetic iron oxide nanoparticles to determine changes in its particle structure has been carried out. Before the natural ...