Na2SnF6
Sodium hexafluorostannate(IV) is an inorganic chemical compound with the formula Na2SnF6. It is a salt formed from sodium cations and the hexafluorostannate(IV) anion. This compound is typically encountered as a white crystalline solid. It is sparingly soluble in water. The synthesis of Na2SnF6 can be achieved through various routes, often involving the reaction of tin(IV) compounds with sources of fluoride ions in the presence of sodium ions. For example, it can be prepared by reacting tin(IV) chloride with sodium fluoride. Na2SnF6 is a member of the hexafluorostannate family, which are salts containing the [SnF6]2- anion. The structure of the hexafluorostannate(IV) anion is octahedral, with the tin atom at the center surrounded by six fluoride ligands. While not as common as some other fluorides, sodium hexafluorostannate(IV) may find applications in specialized areas of chemistry, potentially as a flux or in the preparation of other tin-containing materials. Its properties are largely dictated by the characteristics of the SnF6^2- anion and its interaction with the sodium cations.