Nuclear magnetic resonance studies in the series ZrF4·xHF·yH2O—I: The constitution of the hydrates of zirconium tetrafluoride

Abstract Proton and fluorine magnetic resonance spectra prove that the hydrates of zirconium tetrafluoride are correctly formulated as ZrF 4 ·H 2 O and ZrF 4 ·3H 2 O. The results are related to the possible crystal structure of the trihydrate. It is found that 10–20 per cent surplus water is unavoidably incorporated into the crystal lattice of the monohydrate prepared by the usual methods, but pure monohydrate could be obtained by dehydrating ZrF 4 ·3H 2 O at 110°C.