| Reactions of Tin |
Reactions with water |
| It is stable to water under ambient conditions but on heating with steam, tin reacts with water to from tin dioxide and hydrogen. |
Sn(s) + 2H2O(g) SnO2(s) + 2H2(g) |
Reactions with air |
| It is stable in air under ambient conditions but on heating in air or oxygen, tin reacts with oxygen to from tin dioxide. |
Sn(s) + O2(g) SnO2(g) |
| Reduction Potentials | |
| Balanced half-reaction | E0 / V |
Sn4+ + 2e- Sn2+ |
+0.154 |
Sn4+ + 2e- Sn2+ |
+0.14 |
Sn4+ + 4e- Sn(s) |
+0.01 |
Sn2+ + 2e- Sn(s) |
-0.136 |
Sn2+ + 2e- Sn(s) |
-0.16 |
SnO32- + 3H+ + 2e- HSnO2- + H2O
|
+0.374 |
SnO32- + 6H+ + 2e- Sn2+ + 3H2O
|
+0.844 |
HSnO2- + 3H+ + 2e- Sn(s) + 2H2O
|
+0.333 |
Sn(s) + 4H+ + 4e- SnH4(g) |
-1.074 |