Ultra-fine iron oxide yellow
Iron oxide yellow is a variety of color protective cover, iron oxide yellow pigment for a variety of paint coloring and protection of substances, including water-based interior and exterior paint, powder coatings, etc .; also applicable to oily paint, including oxygen, alkyd, amino All kinds of primer and topcoat; can also be used for toy paint, decorative paint, furniture paint, electrophoretic paint and enamel paint, these items surface application of iron oxide yellow, the color is not easy to retire, increase the color of the gorgeous.
In recent years, experts have made use of Na2CO3 part instead of the conventional NaOH solution to precipitate ferrous sulfate and air oxidation to prepare seed crystals. By adding a small amount of Zn2 + salt as crystal nucleus regulator, Change its crystal nucleus morphology, to achieve low water absorption, high density characteristics. So that the oxidation of iron oxide into a low water absorption of heavy yellow oxide yellow pigment preparation process.