Ultramarine Blue (C.I.PB 29,acid blue 29) Min.order: 25kgs Usage: used in painting, printing ink, ... bright blue powder, which can eliminate the yellow shade of white matter, alkali, heat, light, sub-angle fade acids, ... insoluble in water.To mention the white areas: for paint, knitting industry, paper, detergents and ... .35PIGMENT BLUE (C.I.PB29) Selling P.B. 29 C.I.PB29 pigment blue ...