| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention concerns a dark-coloured lime-soda glass of a blue-green shade. It contains, mass%: FeO 0.40-0.52, Fe2O3 1.2-1.85, Co 0.0020- 0.013, Cr2O3 0.0005-0.0295, V2O5 0-0.0950, Se 0-0.0014. The glass has light transmission of less than 70%, selectivity of more than 1.65, transmission of ultra-violet rays of less than 8% and clarity of more than 9% while having a thickness of 5mm. ^ EFFECT: guarantee of a high value of selectivity and a low value of transmission in the ultra-violet region. ^ 18 cl, 3 tbl |
