This pink water is a dilute solution of Condy's crystals or potassium permanganate.
From the newscientist.com
Oxalic acid and oxalates can be oxidized by permanganate in an autocatalytic reaction.
From the en.wikipedia.org
For example, on reaction between potassium permanganate and sodium sulfite.
From the en.wikipedia.org
For example, the esophagus is affected if the permanganate is swallowed.
From the en.wikipedia.org
Potassium permanganate, sodium permanganate and barium permanganate are all potent oxidizers.
From the en.wikipedia.org
The price of ferric chloride rose 25 percent and that of potassium permanganate is up 43 percent.
From the post-gazette.com
A common treatment for TCE-contaminated water and soil is to introduce a much safer compound, potassium permanganate.
From the abcnews.go.com
I recall that in the army in the Middlle east we used to wash fruit etc in a solution of potassium permanganate.
From the independent.co.uk
My mother would rinse them in a large bowl with potassium permanganate which apparently oxidised the bacteria.
From the independent.co.uk
More examples
A dark purple salt of permanganic acid; in water solution it is used as a disinfectant and antiseptic
A permanganate is the general name for a chemical compound containing the manganate(VII) ion, (MnOu2212n4). Because manganese is in the +7 oxidation state, the permanganate(VII) ion is a strong oxidizing agent. The ion has tetrahedral geometry. Permanganate solutions are purple in color and are stable in neutral or slightly alkaline media...
Generally refers to potassium permanganate, a chemical compound used in water treatment.