Hexafluorotitanic acid
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| IUPAC name Hexafluorotitanic acid | |
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| Properties | |
Chemical formula | F6H8O3Ti |
| Molar mass | 217.918 g·mol−1 |
| Appearance | colorless solid |
| Density | 2.10 g/cm3 |
| Related compounds | |
Other anions | Hexafluorosilicic acid Ammonium hexafluorotitanate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references | |
Chemical compound
Hexafluorotitanic acid (systematically named oxonium hexafluoridotitanate(2-)) is an inorganic compound with the chemical formula (H3O)(H5O2)[TiF6]. According to X-ray crystallography, the salt consists of [TiF6]2- octahedral and two kinds of oxonium cations, (H3O)+ and (H5O2)+.[1]
As with most oxonium salts, it is only stable in acidic solution. Under basic conditions, closely related salts hydrolyse to a hydrated titanium dioxide:[2]
- (NH4)2TiF6 + 4 NH3 + 2 H2O → TiO2 + 6 NH4F
A related salt is the anhydrous fluoronium hexafluoridotitanate(2-) or (H2F)2[TiF6].
References
- ^ Mootz, D.; Oellers, E.-J.; Wiebcke, M. (1988). "Hexafluorotitan(IV)-Saure: Untersuchungen zur Bildung und Struktur kristalliner Hydrate". Zeitschrift für Anorganische und Allgemeine Chemie. 564: 17–25. doi:10.1002/zaac.19885640103.
- ^ Bichowsky, Foord Von (1957). "Extraction of Titanium(IV) Oxide from Ilmenite". Inorganic Syntheses. Inorganic Syntheses. Vol. V. pp. 79–82. doi:10.1002/9780470132364.ch22. ISBN 9780470132364.
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