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Shangyu Chemsfield Co., Ltd.is specialized in Transparent Iron Oxide Pigments and Dispersions. Although nanometer transparent iron oxide pigments are inorganic in view of synthetic process and performance characteristics, they also own properties of organic pigments. The primary particles of transparent iron oxides pigments are nanometer sized, only 0.01-0.015μm, much smaller than opaque iron oxides'. The small particle sizes of transparent iron oxide results in pigments with high surface areas (about 128m2/g) and therefore, high oil absorption values( 80-100). By comparison, the oil absorption figures of phthalocyanine blue is 56, phthalocyanine green 46, carbazole violet 84, opaque iron oxide 18. The particle size of transparent iron oxide pigments is smaller than half light wavelength, so it is transparent when fully dispersed in mediums to make continueous films. Due to their small particle sizes, nanometer transparent iron oxides are totally different from the opaque iron oxides in aspect of light absorption and scattering. Thus they have brighter colors than opaque iron oxides.
China [CN] 
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