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cobalt blue (p.b.28) chemical name: cobalt aluminates blue spinel chemical composition: co/al oxide color index name: pigment blue 28 / p.b.28color index number: 77346cas number: 1345-16-0physical form: blue powdercrystal pattern: spinel patternproduct characteristics:pigment blue 28 is a bright color with reddish blue, which has a special anti-far-infrared function. it is also one kinds of environmental protection pigments, which is internationally recognized as non-toxic pigments. it is easy to disperse, with excellent heat resistance, weather resistance, acid amp alkali resistance, and resist to a variety of solvents, good hiding power. main technical data heat resistance =1200 176clight resistance (grade 1-8)8weather resistance (grade 1-5)5acid resistance (grade 1-5)5alkali resistance (grade 1-5)5oil absorption 28-37g/100gdensity 3.8-5.4 g/cm3ph 7-9mean particle size =0.95 181mregulations:compliant to eu rohs 2002/95/eccompliant to en71part 3:1994 (a1:2000/ac2002)compliant to us fda 21 cfr 177.1520compliant to astm f963-08 (clause 4.3.5)compliant to reachapplications:it is mainly used in high temperature (resistant) coatings, ceramics, enamels, glass coloring, coloring of high temperature resistance engineering plastics, food plastics, as well as art paint.packaging amp deliverypackaging details: 25 kgs/bag, customer-orienteddelivery detail: within 15~20 days after advance. remarks: item no. dpi-bu2801/2802/2803 color from light to dark.
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