Red wine transforms to water, milk, raspberry milk shake and fizzy lemonade
name: Solution of potassium permanganate and sulfuric acid mix with sodium thiosulfate, barium chloride, sodium carbonate solutions
In the reaction of the purple solution of the permanganate ions with thiosulfate ions, colorless Mn(2+) is formed.
This reaction provides the discoloration of the purple solution in the 2nd, 3rd and 5th glasses. In the 2nd glass "pure water" or "white wine" is formed.
White barium sulfate precipitates in the 3rd glass, and a milk-like solution is formed.
There are no thiosulfate ions in the 4th glass, and purple color remains. But Ba2+ ions produce white precipitate with SO42- ions. The "raspberry milk shake" is formed.
When the "red wine" solution is poured into the 5th glass, permanganate ions are reduced by thiosulphate ions and in parallel sodium carbonate reacts with sulfuric acid. CO2 is gassing from this solution.. It looks like a "fizzy lemonade".