11. In contrast to copper, pure iron does not bond strongly to silicate glass . 12. Heatable glass is produced by lamination of two or more sheets of silicate glass . 13. This class usually contains sodium silicate glasses with a high hydrolytic resistance through surface finishing. 14. A common example is treatment of sodium oxide modified silicate glass in molten potassium chloride. 15. Silicon dioxide is acidic, and thus the alkali metal hydroxides can also attack silicate glass . 16. Slocum Stone is a silicate glass which shows traces of sodium, magnesium, aluminum and titanium. 17. These products react with SiO 2 to produce a silicate glass which is a harmless and stable compound. 18. The very high durability of silicate glasses in water makes them suitable for hazardous and nuclear waste immobilisation. 19. Dumet is used for a similar purpose, but is tailored for seals through soda lime and lead alkali silicate glasses . 20. Borate glasses have lower wavelength-refraction dependence in the blue region of spectrum than silicate glasses with the same Abbe number.
