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Germanium dioxide is used as an optical material for wide-angle lenses and in optical microscope objective lenses. It is used as a catalyst in the preparation of polyethylene terephthalate resin. Further, it is used as a feedstock for the manufacturing of phosphors and semiconductor materials. It is also used in transistors and diodes, and infrared transmitting glass.
Amos, R. I.; Heinroth, F.; Chan, B.; Zheng, S.; Haynes, B. S.; Easton, C. J.; Masters, F. A.; Radom, L.; Maschmeyer, T. Hydrogen from Formic Acid through Its Selective Disproportionation over Sodium GermanateA Non-Transition-Metal Catalysis System. Angew. Chem. 2014, 126 (42), 11457-11461.
Yang, J.; Huang, Z.; Huang, B.; Zhou, J.; Xu, X. Influence of phosphorus sources on lithium ion conducting performance in the system of Li2O-Al2O3-GeO2-P2O5 glass-ceramics. Solid State Ionics 2015, 270, 61-65.
Gefahrenhinweise (EU): H302
Harmful if swallowed.
Do not breathe dust/fume/gas/mist/vapours/spray. Obtain special instructions before use. Wear protective gloves/protective clothing/eye protection/face protection. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.