A Study of Some Special UV-Absorbing Glasses which are Transparent to Visible Radiation

JSGT 1948 V32 T040-T045

The effect has been determined of adding varying amounts of CeO₂, V₂O₅ , TiO₂, Cr₂O₃, and of combinations of them (and also Co₂O₃) on the colour and spectral transmission of a soda–potash–lime–silica, and of several soda–lime–silica glasses. From the results, several possible commercial glasses were devised for protecting leather, plain and dyed, dyed silks and writing paper from change of tint due to the UV in sunlight. The glass regarded as best had the batch composition (parts by weight): sand 704, limestone 240, soda (with 15% water) 300, CeO₂ 19·5, CoO 0·05.

V. Ctyroky