Bismuth Trioxde replaces lead oxide to added into Lead free low melting point sealing glass powder

Bismuth Trioxde replaces lead oxide to added into Lead free low melting point sealing glass powder.Applications include cathode ray tube displays, vacuum fluorescent displays, plasma displays, vacuum glass, solar heat collectors, lasers, magnetic head and magnetic material films. The current use of low-melt sealing glass often contains Pb, Cd, Hg and other heavy metals, especially metal Pb, for example, in the current color imaging tube screen and tapered glass powder PbO content of up to 70 (wt), such products contain heavy metals will cause serious harm to the environment and human body. On the one hand, the high lead glass chemical stability is poor, after the use of discarded glass encounterwater, acid rain and atmospheric erosion, lead ions will gradually dissolve, easy to lead to serious pollution of groundwater quality, human life safety, especially to children's brain development will bring serious threats. On the other hand, in the production of lead glass, due to the production process of the flying and glass melting process of lead volatilization often cause harm to production workers and the environment, a large number of human, material and financial resources need comprehensive management. Now, the human environmental awareness is more and more strong, lead-free and other pollution-free sealing glass and its products will be more and more popular.

In Bi2O3-B2O3-BaO glass powder, the glass expansion coefficient increases with the increase of Bi2O3 content, and the volume resistivity decreases with the temperature. The Bismuth trioxide produced by Changsha Santech can be added into the glass powder, non-toxic and will not cause pollution to the environment.

Product recommendation : Bismuth

Changsha SANTECH provides Bismuth Metal Ingot, Pure Bismuth Granules, High Purity Bismuth Needle, Bismuth Metal Powder, Bismuth Trioxide Powder, etc. Please email us if you are interested in our products. Thank you!