| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to the technology of silicates, and more specifically to glass for making dishware, souvenirs, vases, ashtrays etc. The glass contains the following in wt %: SiO2 51.6-53.6; CaO 2.0-2.6; MgO 2.0-2.6; Al2O3 16.0-17.6; B2O3 4.0-4.4; Na2O 4.0-4.4; MnO2 14.0-16.0; Cr2O3 2.4-2.8. The glass has water resistance of the 111 hydrolytic class. ^ EFFECT: increased water resistance of the glass. ^ 1 tbl |
