Molybdenumhas a melting point of 2620 C. Its strength is very high at ambient and high temperatures because of the strong binding force between atoms. Molybdenum has small expansion coefficient, high conductivity and good thermal conductivity. It does not react with hydrochloric acid, hydrofluoric acid and alkali solution at room temperature, but only dissolves in nitric acid, aqua regia or concentrated sulfuric acid. It is also quite stable for most liquid metals, non-metallic slags and fused glass.

   Molybdenum has many advantages, such as high melting point, boiling point, high temperature strength, high resistance to friction and corrosion, high thermal conductivity, low thermal expansion coefficient, good hardenability, etc. It has been widely used in aerospace, weapons, electronics, glass and other fields. In recent years, China consumes is up to 40 tons of molybdenum every year in the glass industry, and its consumption is still on the rise.

  Molybdenum is widely used in glass fiber, quartz glass, flat glass and TV glass shell production. The amount used in glass fiber production is large, accounting for 75% of the total used in the glass industry. China's quartz glass production needs about 25 molybdenum crucibles annually, consumes about 6 tons of molybdenum materials; glass shell production needs about 5 tons foragitator. In addition, molybdenum electrodes are used as heaters in the production of some glass bottles, bulb glass and thermos.

    Molten glass can corrode most metals, but molybdenum and platinum are resistant to corrosion. Platinum is too expensive. Nowadays molybdenum or tungsten alloy containing 30% tungsten is used instead of platinum as the electrode of glass melting furnace.