Talk:Tin(IV) oxide
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[edit]The comment(s) below were originally left at Talk:Tin(IV) oxide/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.
| What are the optical and electrical properties of SnO2? It is very freuently used in thin films. |
Last edited at 19:33, 16 April 2007 (UTC). Substituted at 08:51, 30 April 2016 (UTC)
Amphoteric?
[edit]I removed the description of this material as amphoteric, which cited textbooks from the 30's and 40's. Modern treatises say that crystalline SnO2 is not attacked by acid and base (otherwise cassiterite ore would probably be worked up with acid-base chem). SnO2 dissolves in molten alkali and neat H2SO4, though. One complication to emphatically denying amphoterism is that various hydrated forms exist like "stannic acid". It may be tricky getting good sources on such things. Also those older sources implied that SnCl4 can be made from SnO2, but modern sources make SnCl4 from the metal + Cl2.--Smokefoot (talk) 13:02, 21 February 2025 (UTC)