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        Electronic Colloidal silica

        This product can be used as polishing of electronic components, dispersant of coating of picture tube, etc.

        Item

        Model and Standard

        ES-205

        Appearance

        Slight milky transparent to translucent liquid

        Na2O (wt%)

        ≤0.2%

        SiO2 (wt%)

        20-21%

        Density (20°C,g/cm3)

        1.12-1.14

        Impurity substance (ppm)

        Fe

        ≤30

        Al2O3

        ≤1000

        Cu

        ≤0.2

        Pb

        ≤1.0

        Cr

        ≤2.0

        pH(20°C)

        8.5-9.0

        Viscosity (20℃,mPas)

        ≤10

        Particle size (nm)

        8-15

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