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      NS
      • Product introduction
      • Product description
      • Video description
      • Ammonium Colloidal silica

        This type use ammonium ion as stabilizer, compared with the colloidal silica use sodium ion as stabilizer, It has better toughness and air permeability, so it is more suitable for making fiber soft products in refractories, and electronic polishing, coating, flocking, wool spinning and other industries.

        Item

        Model and Standard

         

        NS-20

        NS-25

        NS-30

        Appearance

        Slight milky transparent to translucent liquid

        Na2O (wt%)

        ≤0.1%

        SiO2 (wt%)

        20±1%

        25±1%

        30±1%

        Density (20°C,g/cm3)

        1.12-1.14

        1.15-1.17

        1.19-1.21

        pH (20°C)

        8.5-10.0

        Viscosity (20°C,mPa•S)

        ≤10

        Particle size (nm)

        8-15

        Stability

        One year

      Products

      R & D

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