Physical and Chemical properties: Test method:R2/ ISO591-1:2000(E),II/ASTM D476-84 Surface treatmeat: Special process Specific gravity(g/cm3): 4.0 Appearance: bluish white powder Content of TiO2: 90.5%(m/m)min Content of Rutile:99.9% min Volatile at 105ºC:0.3% (m/m)max Particle size:0.28 um CIE L*:98.2 b*:2.20 Scattering power (Compare with reference sample) : 100% min pH value of aqueous suspension:7.5 Oil absorption: 19g/100g max Resistivity:100 Ω.m UV stability(ΔE,3hours):0.5
Product characteristics: It is produced by chloride process and surface wet treated by special method ,C840 is good UV stability,good disperstion in water,high whiteness,high hiding power.
Recommended application: C840 is widely used in paper industry.
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