1. Germanium dioxide is used as a catalyst in the production of PET plastics used for heated beverage bottles, as well as as a precursor to germane gas (GeH4), germanium tetrachloride (GeCl4) and zone refined germanium metal ingots.
2. Used as raw material of metal germanium and other germanium, semi-conductor material and spectral analysis.
3.It can be used to make Optical glass fluorescent powder, also can be used as catalyst, color film and polyester producing.