Standard testing requires careful handling to avoid contamination.
Used for testing the acidity of soil, water, household chemicals (like vinegar or baking soda), and even in medical settings to assess body fluid pH. litmus paper
It cannot differentiate between weak and strong acids (e.g., pH 1 vs. pH 3). It is also susceptible to interference from other substances in a solution that might affect the dye's appearance. Types of Litmus Paper Record the color change immediately
Generally do not change the color of red or blue litmus paper, though dedicated purple litmus paper exists for this purpose. Types of Litmus Paper pH 1 vs.
Record the color change immediately. Most changes occur within seconds.
Collect 2-3 drops of the sample in a clean vessel or well plate.
There are three main variations used in laboratories and educational settings: