The color of turmeric indicator in sodium hydroxide ( Na(OH) ) is red - brown .
it will change to red colour
acidic - magenta basic - no colour change
Turmeric powder is commonly used as an indicator. When added to a substance, it turns red in the presence of a base and yellow in the presence of an acid. To test if salt is acidic or basic, mix a small amount of turmeric powder with water and add a pinch of the salt. If the turmeric turns red, the salt is basic; if it turns yellow, the salt is acidic.
buy turmeric powder then take a glass of distilled water add 1 teaspoon turmeric powder to it you will notice that the color of the water turns yellow this solution is your indicator
dark pink
The purple bougainvillea indicator will remain purple if the substance is acidic. Bougainvillea indicator turns pink in basic solutions and remains purple in acidic solutions due to the color change of its pigments in response to pH.
indicator
Turmeric contains a compound called curcumin which gives it a vibrant yellow color. In acidic solutions, curcumin changes to a reddish color, while in basic solutions, it changes to a dark brown color. This color change makes turmeric a useful natural indicator for determining the acidity or basicity of a solution.
I'd suggest (but couldn't establish it from literature) that turmeric powder is yellowish ocra in acidic 'solution', because it gives mustard (made with acetic acid) its yellow color, which is not redish-brown like curcuma is in neutral circumstance.Added:From one scource it says: ' In acidic solutions (pH 8.6) solutions it turns bright red.'
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
An indicator refers to a substance that changes color to show how a given substance is either acidic or basic.
The phenolphthalein indicator is pink in basic solutions.