Characters and features:in excellent performance of coloring,in bright color of brown yellow,good tinting steng thand covering capacity,tinting strength almost equivalent to lead oxide yellow or chrome yellow,good resistance to light and atmostphere and foul gas. Good alkali resistance,dissolved only in hot strong acid,good thermal endurance; it begins to decompose into red pigment when losses water of crystallization under temperature highter than 150⁰c.

Applications :Mainly for manufacture of coating and paint ;mixed with white cement in building industry to fabricate artificial marble;coating and decorating on wall,cement floor ;making water-color and grease -paint in indurstry of oulture and education;colorant for leather tinting;iron oxide series pigments intermediate.