Potassium Permanganate Solid
THIS IS A RESTRICTED PRODUCT – PLEASE CONTACT US TO PLACE YOUR ORDER.
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- Hazard Information
- Shipping Statements
Need Potassium Permanganate in Solid Form?
- We supply potassium permanganate in solid form in 500g containers and 25kg bags
- This is a restricted product, so please contact us to place your order
- We also supply potassium permanganate in 0.1M and a 5% w/v solution
- With all our products, we also offer many other options including custom labelling and specific pack sizes
How is potassium permanganate prepared?
Usually, this compound is synthesised from manganese dioxide (MnO2) which is mixed with potassium hydroxide (KOH) and heated in the presence of potassium chlorate or potassium nitrate as a source of oxygen. This reaction produces potassium manganate (K2MnO4):
2 MnO2 4 KOH O2 → 2 K2MnO4 2 H2O
The second step involves conversion of potassium manganate into its permanganate counterpart via an electrolytic oxidation reaction.
K2MnO4 H2O → KMnO4 KOH 1/2 H2
Although not commercially viable, there are other methods to generate potassium permanganate. One of them involves oxidation of potassium manganate with chlorine (reaction 1) or via a disproportionation reaction in acidic conditions (reaction 2). After the reaction, potassium permanganate can be isolated after it crystallises.
Reaction 1 2 K2MnO4 Cl2 → 2 KMnO4 2 KCl
Reaction 2 3 K2MnO4 4 HCl → 2 KMnO4 MnO2 2 H2O 4 KCl
How to test for the presence of potassium permanganate
Tests to identify the presence of potassium permanganate rely on the strong purple colours produced by its salts in the presence of sodium bismuthate (NaBiO3) and lead dioxide (PbO2). These strong oxidant reagents can convert manganese ions (Mn2 ) into permanganate salts, which can then be detected.
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|686||1||1538S||KMNO₄||0||0||0||M.W. 158.03||24/09/2018||Steve Toye||04/04/2017||0||24/09/2018|
|BulkCode||Hazard Statement Code||Description|
|1538||H302||Harmful if swallowed.|
|1538||H410||Very toxic to aquatic life with long lasting effects.|
|1538||H400||Very toxic to aquatic life.|
|1538||H272||May intensify fire; oxidiser.|
|BulkCode||Precautionary Statement Code||Description|
|1538||P280||Wear protective gloves/ protective clothing/ eye protection/ face protection.|
|1538||P501||Dispose of contents/ container in accordance with local regulations.|
|1538||P273||Avoid release to the environment.|
|1538||P220||Keep away from combustible materials.|
|ADR/RID Shipping Name||POTASSIUM PERMANGANATE|
|ADR/RID Shipping Class||5.1|
|ADR/RID Packing Group||II|
The following files are available to download:
|Product ID||Product||post_status||Bulk||Download SDS File|