Chemistry:Hexafluorotitanic acid

Hexafluorotitanic acid

Names
IUPAC name hydron; titanium(+4) cation; hexafluoride
Identifiers
CAS Number	17439-11-1
3D model (JSmol)	Interactive image
PubChem CID	161221
InChI InChI=1/6FH.Ti/h6*1H;/q;;;;;;+4/p-4/f6F.Ti.2H/h6*1h;;;/q6*-1;m;2*+1
SMILES [H+].[H+].[F-].[F-].[F-].[F-].[F-].[F-].[Ti+4]
Properties
Chemical formula	F6H2Ti
Molar mass	163.873 g·mol−1
Density	1.675g/cm3
Related compounds
Other anions	Hexafluorosilicic acid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Hexafluorotitanic acid (systematically named oxonium hexafluoridotitanate(2-)) is an inorganic compound with the chemical formula (H₃O)₂[TiF₆].

As with most oxonium salts, it is not stable when undissolved, or under neutral to basic conditions, tending to decompose in those conditions to titanium fluorides or oxyfluorides. Under highly acidic conditions, it decomposes to titania, which is accelerated by fluoride scavengers. Under highly basic conditions, it is hydrolysed to titanium hydroxide. A related salt is the anhydrous fluoronium hexafluoridotitanate(2-) or (H₂F)₂[TiF₆].