Society of Glass Technology · [Sheffield] · leaf 278
Table II. Series 100SiO3,40K2O,#BaO. Series 100SiO2,20K2O,zBaO. Melt Mols. Per cent. ^ Melt Mols. Per cent. No. BaO. BaO. Density. No. BaO. BaO. Density 192.4 5 72 2619 193,4 5 8-8 2-565 B 10 135 2-718 B 10 16-2 2-681 C 15 190 2-803 C 15 22-5 2-798 D 20 23-8 2-904 D 20 27-9 2-922 E 30 319 3-079 E… … 5 10 15 20 25 Molecules BaO. Fig. 1. (1) Where the molecular barium oxide content is less than16 molecules the addition of potassium oxide raises the density.The same result was found with the sodium oxide glasses. (2) In both series the addition of barium oxide increases thedensity. (3) The rate…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
