Germanium halides fluorination

LIQUID AMMONIA (7664-41-7, anhydrous, compressed gas or cryogenic liquid 1336-21-6, solution in water) Difficult to ignite, but can detonate in confined spaces in fire. Reacts violently with strong oxidizers, acids (nitric, hydrochloric, sulfuric, picric, hydro-bromic, hydrochlorous, etc.). Shock-, temperature-, and pressure-sensitive compounds are formed with antimony, chlorine, germanium compounds, halogens, heavy metals, hydrocarbons, mercury oxide, silver compounds (azides, chlorides, nitrates, oxides). Fire and/or explosions may be caused by contact with acetaldehyde, acrolein, aldehydes, alkylene oxides, amides, antimony, boron, boron halides, boron triiodide, bromine, bromine chloride, chloric acid, chlorine, chlorine monoxide, o-chloronitrobenzene, l-chloro-2,4-dinitrobenzene, chlorosilane, chloromelamine, chromium trioxide, chromylchloride, epichlorohydrin, fluorine, hexachloromelamine, hypochlorites (do not mix ammonia with liquid household... 

Phase transfer-catalyzed fluorination of alkyl halides and sulfonates is efficiently achieved via treatment with solid potassium fluoride in the presence of triphenyltin fluoride cocatalyst. Similarly, the tetraalkylammonium salts of tin, germanium, and silicon have also been studied for their ability to promote phase transfer-catalyzed fluorination. Notably, TBAT was shown to be not nearly as efficient a cocatalyst under conditions analogous to those used for the tin compounds. ... 

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