It is because the turmeric contains a compound called cucumine.cucumine reacts with the fatty acid in the soap/detergent and thence the color of the combination changes to red.
Turmeric stains turn red when washed due to a chemical reaction involving the curcumin pigment in turmeric. When turmeric comes into contact with alkaline substances, such as soap or certain detergents, the pH change can alter the structure of curcumin, causing it to shift from its original yellow color to a reddish hue. This phenomenon is often more noticeable on certain fabrics or surfaces.
The red color observed when turmeric stains interact with detergent may be due to the detergent breaking down the chemical structure of the turmeric molecules, causing a change in their absorption properties. This results in the turmeric shifting from its characteristic yellow color to a reddish hue.
it is natural indicator. when it stains in curry on shirt and you wash it with soap turs into pinkish red colour which is base.
The color of turmeric indicator in sodium hydroxide ( Na(OH) ) is red - brown .
Turmeric is red in basic solutions.
If you put the egg in vinegar then put it into Gatorade then the egg looks defalated, red, and very sticky.
Curcuma (turmeric) is red in an alkaline solution and yellow in an acidic solution.
lime juice and soap solutions turn red in turmeric because turmeric is an organic indicator which turns red in acidic or basic solution and lime juice is an acidic solution while soap is a basic solution
The colour is red
red
It should easily remove red win stains. As with all stains you will want to remove it as soon as possible.