Covers a glass of composition (wt%) 54-58 BaO, 31-34 TiO2, and 10-12 B2O3, preferably that prepared from the batch 55.4 BaCO3, 2.2 BaO2, 25.8 TiO2, 16.6 H3BO3. This glass has RI 1.85-1.95.
Origin
Unknown
Journal Title
Usp 2 980 547, 18/4/61
Sector
Refractive Indexes
Class
RI 16