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well some people believe turmeric is a base but
its an acid
acidic
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.
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
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.
Turmeric turns red in acidic solutions and yellow in basic solutions when tested with pH paper. This color change is due to the chemical structure of turmeric and its reaction with different pH levels.
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.'
Turmeric is yellow in an acidic solution.
Turmeric is red in basic solutions.
Turmeric is considered to be alkaline in nature due to its ability to neutralize acids in the body when consumed.
Curcuma (turmeric) is red in an alkaline solution and yellow in an acidic solution.
common salt does not have much effect as it is a substance formed during the process of neutralization. thus it is neither acidic nor basic in nature.
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