Reaction of the glass with molybdenum.
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- Category: Molybdenum knowledge
- Published on 21 July 2014
- Written by ling
- Hits: 399
Not in contact with the glass chemical reaction does not cause staining of the glass. Trace amounts of molybdenum oxide is dissolved in a molten glass, soda lime glass will slightly yellow, but it is usually very mild. Thus, even for colorless glass, there is no effect. Reducing erosion poor molten glass molybdenum electrodes than with oxidizing liquid glass is much smaller.
The molten glass inevitably dissolve some air. Due to oxygen in the air oxidation of molybdenum at high temperature, Z is first generated MoO2, MoO2 further oxidized MoO3, MoO3 white volatiles were dissolved impurities glass component can not afford protection of the electrodes, but does not contaminate the glass . This molybdenum electrode reaction gas is not dissolved and eliminated. However, the amount of gas dissolved in a little because the reaction is not severe. Further, the glass furnace in the flow speed is very slow, has a laminar flow state, the adsorbed layer on the electrode surface relative to a stationary glass constituting the "liquid protective barrier", molybdenum electrode barrier system and fresh glass touch, cutting the oxygen source , the electrode can be prevented from continuing the slow oxidation. Therefore, the physical dissolution of the oxygen electrode to the molybdenum will not cause substantial harm.
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