Germanium tetrafluoride (GeF4) is a chemical compound of germanium and fluorine. This colorless gas is formed by reacting germanium with fluorine or germanium dioxide (GeO2) with hydrofluoric acid (HF). Germanium difluoride can be synthesized by reacting germanium tetrafluoride with powdered germanium at 150–300°C.

CAS：7783-58-6
中文别名：四氟化锗;
英文别名：germanium fluoride;germanium(IV) tetrachloride;Germane,tetrachloro;germaniumtetrachloride;germanium tetrafluoride;germanium chloride;germanium(IV) tetrafluoride;Germanium(IV)-fluorid;GERMANIUM(+4)CHLORIDE;GeCl4;tetrachlorogermanium;germanium(IV) chloride;tetrachloro-german;germanium dichloride;tetrachloro-Germane;tetrachloro-germaniu;
分子式：F4Ge
分子量：148.634
精确质量：149.915
Psa：0.0
Logp：1.3

EINECS号：232-011-3

密度：2.126 g/mL at 0ºC(lit.)
沸点：-36,5ºC
熔点：-36.5ºC(lit.)

安全说明：S26; S36/37/39; S45
危险类别码：R34
危险品运输编码：UN 3304 2
危险类别：2.3
危险品标志：C; T
危险标志：GHS05
危险性防范说明：P280; P305 + P351 + P338; P310
危险性描述：H314
信号词：Danger

生产方法
BaGeF6在石英管中加热到约700℃即迅速分解得到GeF4。