| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention pertains to the technology of silicates and relates to glass compounds, used in production of glass tiles. The glass consists of the following components with the given percentage mass ratios: SiO2 58.0-62.0; Al2O3 3.0-4.0; CaO 14.0-18.0; MgO 3.0-4.0; Na2O 1.5-2.5; K2O 1.5-2.5; FeO 0.5-1.0; Fe2O3 0.5-1.0; B2O3 6.0-11.5; CuO 0.5-1.5; ZnO 1.0-2.5. ^ EFFECT: increased frost resistance of the glass. ^ 1 tbl |
