High Refractive Index Glass For Road Sign Beads

A glass of this type which was "water-white" in colour and had a RI greater than 1.90 had the composition (mol%) 35.6-57.0 TiO2, 22.8-40.0 BaO, 5.5-26.9 B2O3, 0-20 ZnO in which BaO + TiO2 had the value 67.3-93.0, BaO + B2O3 35.3-54.9, TiO2 + B2O3 45-72.0, B2O3 + ZnO 7.0-32.7, BaO + ZnO + TiO2 73.1-94.5. 7 compositions are quoted.

Author
Prisms Safety Corp
Origin
Unknown
Journal Title
Usp 2 939 797, 7/6/60
Sector
Refractive Indexes
Class
RI 5

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High Refractive Index Glass For Road Sign Beads
Usp 2 939 797, 7/6/60
RI 5
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