The chemical resistance, changes in the composition and structure of materials based on fused minerals and sodium water glass have been studied when interacting with corrosive liquids. It was determined by the methods of IR spectroscopy and chemical analysis that upon exposure to acids, the degree of polymerization of silicate compositions increases in proportion to a decrease in the content of modifier cations. The action of an alkaline solution leads to a shift of the stretching vibration bands of Si - O - Si bonds to the low-frequency region due to a decrease in the content of SiO 2 . All tested materials are resistant to water and 3 & # 37; -th CH 3 COOH. In solutions of 20 & # 37; -th H 2 SO 4 and 35 & # 37; -th NaOH materials based on fused pyroxenes have maximum stability
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