①application for tinting：paint, rubber, print, ink, colour paint, architecture, etc.

②application for white：paint, knit, paper-making, detergent, etc.

③specific application for art paint： mix ultramarine blue powder with blend oil, glue and propylene and one can get oil paint, water colour paint, gouache paint and propylene paint for art students. Ultramarine blue is mineral pigment, transparant, poor covering power and high brightness, not suitable for dark paintings but decorative bright colours, especially ancient Chinese architectures.