The primary purpose of litmus paper is to provide a quick, qualitative assessment of a substance's nature. Unlike pH strips or digital meters, it does not provide an exact numerical pH value; instead, it indicates a range where a color change occurs, typically between pH 4.5 and 8.3. Turn blue litmus paper red . Bases: Turn red litmus paper blue .
Use clean forceps or a glass rod to apply the sample, or dip one end of the paper strip into the liquid. litmus paper
Primarily used to test for bases. It remains red in acidic or neutral solutions and turns blue in alkaline ones. The primary purpose of litmus paper is to
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. Bases: Turn red litmus paper blue
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
Standard testing requires careful handling to avoid contamination.