Ultramarine blue is a deep blue pigment that has been a historically rare and costly pigment. In its natural form,the blue is made from ground lapis lazuli,which is a unique stone ,found in very few parts of the world. The pigment can,however,be crafted synthetically. The chemical compound that makes up ultramarine blue consists mainly of a double silicare of sodinm and aluminum. Property:: 1. High light fastness and heat fastness: the content of free sulphur reaches to world-classlow level because of the adoption of special technology. 2. Molecule is very pure and stable 3. Good dispersiveness: the particle size range is controlled with 2um, which is favorable for despersing. 4. Non-toxic:certificates of RoHS,REACH, and EN-71 can be provided. Applications: 1. Coloring:in paint,ink,leather,rubber,plastic,pigment,cosmetics etc. 2. Whitening: eliminate the yellow tint from white products. 3. Color matching: the mix of ultramarine in dark or grey can make those colors softer.