3 Review(s)

This pack includes 100 high-quality litmus strips, it's a combination of red and blue paper. Red litmus paper turns blue in the presence of a basic (alkaline) solution, while blue litmus paper turns red when exposed to an acidic solution. Each strip delivers a quick and visible color change, typically within 15 seconds, making it ideal for fast pH assessments. To use, simply dip a strip into a liquid sample or place it on a moistened surface such as damp soil. Then, observe the color change and compare it with the included reference guide to determine whether the substance is acidic or basic. The product is compact, lightweight (only 25 grams), and conveniently packaged, making it suitable for classroom demonstrations, lab experiments, or field testing. This litmus paper set is suitable for testing a wide range of everyday substances such as lemon juice, vinegar, soap solution, baking soda, and more. It does not provide specific pH values but is excellent for quick, qualitative testing.