Alright, so Tin ions in most of it's salts have the propensity to form Tin(II,IV) Hydroxides and then precipitating out of aqueous solutions. What can I throw in the solutions to prevent this? Using Tin Fluoroborate doesn't precipitate Hydroxides, but I don't have access Fluoroborates. I really don't want very acidic solutions, either, for safety purposes.
Is there any complexes out there that does the job?