Glass fining with arsenic and antimony oxides

Using the example of industrial silicate optical crowns, the ability of glass melts of different composition to be clarified with arsenic and antimony oxides has been studied. It was found that the kinetics of the decomposition reaction of arsenic pentoxide, which is responsible for the removal of bubbles from the molten glass, is closely related to the redox potential of the melt. Practical recommendations are given. Tab. 4, bibliography: 7 titles.