# What is the equation for this reaction: Potassium permanganate reacts with aluminum sulfate to produce potassium sulfate and aluminum permanganate?

Apr 14, 2017

This is straightforward metathesis reaction..........we balance charge, and balance mass.

#### Explanation:

$6 K M n {O}_{4} + A {l}_{2} {\left(S {O}_{4}\right)}_{3} \rightarrow 2 A l {\left(M n {O}_{4}\right)}_{3} + 3 {K}_{2} \left(S {O}_{4}\right)$

Is this balanced...........?

We should be careful with the use of permanganate anion, as it is a POTENT oxidant. Permanganate anion is typically reduced to (almost) COLOURLESS $M {n}^{2 +}$ (note that other reduction products are possible, but these depend on conditions):

$M n {O}_{4}^{-} + 8 {H}^{+} + 5 {e}^{-} \rightarrow M {n}^{2 +} + 4 {H}_{2} O$

Here, however, the $A {l}^{3 +}$ cation is redox inert, and CANNOT undergo further oxidation.........