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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?

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  • $\begingroup$ A pH of about 3 or 4 should work as far as I remember from my students time. Do you consider this to be too acidic? $\endgroup$ – Martin - マーチン Mar 19 '15 at 4:47
  • $\begingroup$ as long as not strongly acidic enough to readily oxidize zinc metal, but i don't know how low the pH has to be to oxidize zinc. $\endgroup$ – Dehbop Mar 19 '15 at 5:00
  • $\begingroup$ how about ketones and saccharides? $\endgroup$ – Dehbop Mar 19 '15 at 5:58
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    $\begingroup$ @Badadeeboop do you like chelants? $\endgroup$ – busukxuan Mar 19 '15 at 9:30

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