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Oxides
OxidesNanomaterials

Titanium dioxide

By NanoE

Chemical composition: ICP-OES (MPX VARIAN) analysis of the following elements: Ag, Al, Ba, Be, Bi, Ca, Cd, Ce, Co, Cr, Cu, Dy, Er, Eu, Fe, Ga, Gd, Ge, Hf, K, La, Lu, Mg, Mn, Mo, Na, Nb, Nd, Ni, P, Pb, Pd, Pt, Rh, Si, Sm, Sr, Ta, Tb, Te, Th, Ti, Tl, U, V, W, Y, Zn, Zr. Only 4 elements were detected at trace level: Chemical element Al Ca Na Si Mass fraction (%) < 100 ppm < 100 ppm < 100 ppm < 100 ppm 2 other elements were detected at trace level but are not considered relevant because of the mandatory milling step of the powder at SFC laboratories: cobalt (< 100 ppm) and tungsten (225 ppm). This milling method always add cobalt and tungsten to the sample in these proportion on a 0 trace containing sample. Traces of mercury has been searched more specifically by ICP-MS (Hg is volatile during mineralization of the sample for ICP-OES analysis), the result showed no traces of mercury (< 200 ppb, close to detection threshold). Physical properties: Particle size distribution D10* (μm) Particle size distribution D50* (μm) Particle size distribution D90* (μm) Flowability (s/50 g) Free density (kg/L) Humidity content (%) 85 125 200 77 1.940 0.09 *Image analysis on SEM microscope capture X50 (figure 1 and 2), number distribution ** Measured by Hall method, ASTM B213 standard (50 g, 20°C). Measured with humidity scale at 80°C. Figure 1. SEM picture of titanium dioxide at 50 x magnification 500 μm

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