Complex sentence: 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.
Split into simpler sentences: 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.