Touchscreen Grade Potassium Nitrate

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Touchscreen Grade Potassium Nitrate


Optical glass strengthening is to exchange sodium ions on the glass surface with potassium ions in molten potassium nitrate salt, because the radius of potassium ions is larger than that of sodium ions, and potassium ions replace the sodium ions in the glass, causing the surface to "crowd" and expand , forming a compressive stress layer, so as to achieve the purpose of increasing the strength of the glass surface.