Society of Glass Technology · [Sheffield] · leaf 118
lowing data inTable XI. BOTTLE-GLASS AND GLASS-BOTTLE MANUFACTURE. 45 Table XI. Composition. Source of Bottle. SiOa AI2O3 Fefia CaO Trelon 62-21 116 5-50 22-98 Cognac 62-54 4-42 1-20 20-47 Bechelbach 65-57 3-34 2-53 23-42 MgO 5-41 Na^O5-694-734-86 K2O1-910-942-72 MnO 0-28 The compositions stated in… … 600 800 1000 1500 1800 Temperature. high temperature is attained, and then falls rapidly, becomingvery limpid. Practical experience is borne out by measurementsof viscosity. The results with a glass of the followingcomposition: — SiOj 720 per cent. AI2O3 30 CaO 5-5 NajO 150 KgO 4-5 46 JOURNAL OF…
Glass
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