Glasses having a low content of lead oxide useful for the embodiment of the electrical components.

摘要

The invention relates to the industry canopy. / p & & p & it relates to the glass has a low content of lead, characterized in that they are prepared from a glass batch charged having the following composition by weight based on the oxides: 66 - 70, 0 - 3 of bo, 2 - 4,5 of alo.sub.2.sup.-, 0,5 - 1,6 of the invention, 7 - 9,5 of nao, 5 - 8,5 of ko, 5 - 9,5 of bao, 1,5 - 5 of pbo, 0 - 3,5 of mgocao, 0 - 1 of sboaso, with baocaomgo between 8 and 11, inclusive, and with lionaoko between 14,5 and 17, inclusive, the ratio ponderal naoko since inferior has 1,7. / p & & p & application for the manufacture of electrical components, such that the bulbs on illumination.