First make a paste of turmeric powder
now apply the paste on a butter paper and let it dry
now its ready and can be used for making secret messages.
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.
Sodium bicarbonate ( baking soda )
Turmeric paper contains curcumin, a natural pH indicator that changes color in response to acidity. When hydrochloric acid is applied, the acidic environment causes curcumin to undergo a chemical change, resulting in a red coloration. This color change indicates the presence of acid, demonstrating the pH-sensitive properties of turmeric.
Perform an extraction on 1/4 teaspoon of ground turmeric using 1/4 cup rubbing alcohol.Filter the mixture through a coffee filter, fitted to a sieve. save the effluent.use as effluent, or saturate thin paper strips and use like litmus paper.Turmeric will indicate an acid, by turning yellow.It will indicate a base by turning red.
litmus paper
A box of pH paper has printed the colors and the pH values.
pH papers are used to find pH of solutions, not litmus paper.
Litmus paper
The pH paper value indicates the pH level of a substance. pH paper changes color when it comes in contact with a solution, allowing you to determine its acidity or alkalinity based on the color chart provided with the pH paper.
The PH paper soaks up the solution & tests the liquid, the pH paper will then change colour to show what the solution contains. Although if the paper stays the same colour it means the solution is nutral & safe.
Universal pH paper is a type of indicator paper that changes color based on the acidity or alkalinity of a solution. It covers a wide pH range and can be used to quickly determine the approximate pH of a liquid.
color