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2. Potassium permanganate - Wikipedia

   en.wikipedia.org/wiki/Potassium_permanganate

   Potassium permanganate can be used to oxidize cocaine paste to purify it and increase its stability. This led to the Drug Enforcement Administration launching Operation Purple in 2000, with the goal of monitoring the world supply of potassium permanganate; however, potassium permanganate derivatives and substitutes were soon used thereafter to ...

3. Iowa residents plagued by nasty pink tap water: ‘Like you are ...

   www.aol.com/iowa-residents-plagued-nasty-pink...

   An issue with the city’s water pumps caused an excess of potassium permanganate to penetrate the system, turning the water bright pink and unsafe to consume.

4. Slingshot (water vapor distillation system) - Wikipedia

   en.wikipedia.org/wiki/Slingshot_(water_vapor...

   Slingshot is a water purification device created by inventor Dean Kamen. [1] Powered by a Stirling engine running on a combustible fuel source, it claims to be able to produce drinking water from almost any source [2] by means of vapor compression distillation, [3] requires no filters, and can operate using cow dung as fuel.

5. Portable water purification - Wikipedia

   en.wikipedia.org/wiki/Portable_water_purification

   Portable water purification devices are self-contained, easily transported units used to purify water from untreated sources (such as rivers, lakes, and wells) for drinking purposes. Their main function is to eliminate pathogens , and often also suspended solids and some unpalatable or toxic compounds .

6. Halazone - Wikipedia

   en.wikipedia.org/wiki/Halazone

   Halazone tablets have been used to disinfect water for drinking, especially where treated tap water is not available. A typical dosage is 4 mg/L. [5] [6] Halazone tablets were commonly used during World War II by U.S. soldiers for portable water purification, even being included in accessory packs for C-rations until 1945.

7. Disinfectant - Wikipedia

   en.wikipedia.org/wiki/Disinfectant

   Regardless, ozone has a very wide range of applications from municipal to industrial water treatment due to its powerful reactivity. Potassium permanganate (KMnO 4) is a purplish-black crystalline powder that colours everything it touches, through a strong oxidising action. This includes staining "stainless" steel, which somewhat limits its use ...