FIELD: making electroconducting fine films; agents causing formation of transversal bonds, thickeners and fillers in composite materials and reactive silica. SUBSTANCE: method comprises mixing colloidal silica with potassium hydroxide, colloidal silica being preboiled or diafiltrated or exposed to ultrasound. Invention makes is possible to prepare potassium polysilicate solutions which have low viscosity and form no gels for prolonged period of time during storage. EFFECT: more efficient preparation method. 6 ex
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