What is the Difference Between Potassium Permanganate and Potassium Dichromate?

The main differences between potassium permanganate and potassium dichromate are:

1. Color: Potassium permanganate is purple in color, while potassium dichromate is yellow or red-orange in color.
2. Oxidizing Strength: Potassium permanganate is a strong oxidizing agent, whereas potassium dichromate is a moderately strong oxidizing agent.
3. Solubility: Potassium permanganate is highly soluble in water, while potassium dichromate is insoluble in water.
4. Chemical Formula: Potassium permanganate has the chemical formula KMnO4, while potassium dichromate has the chemical formula K2Cr2O7.
5. Oxidation States: The manganese atom in potassium permanganate has a +7 oxidation state, while the chromium atom in potassium dichromate has a +6 oxidation state.
6. Stability: Potassium permanganate is a stable compound, while potassium dichromate is less stable.
7. Applications: Potassium permanganate is used as an oxidizing agent, disinfectant, and in various industrial processes. Potassium dichromate is used as a chromium supplement, in tanning, in the production of dyes and pigments, and as a corrosion inhibitor.

Comparative Table: Potassium Permanganate vs Potassium Dichromate

Here is a table comparing the differences between potassium permanganate and potassium dichromate:

Key points:

• Potassium permanganate has a dark purple color, while potassium dichromate has a red-orange color.
• Potassium permanganate is a strong oxidizing agent, whereas potassium dichromate is a milder oxidizing agent.
• Potassium permanganate is used in medicine to clean wounds, while potassium dichromate is not.
• Potassium permanganate is used in water treatment, organic synthesis, and medicine, while potassium dichromate is used in cotton dyeing, image processing, and as a corrosion inhibitor.