Litmus papers offer practical and easy pH measurement for all processes that do not require precise pH measurements.
Quickly and easily indicate whether liquids are acidic or basic.
Red litmus paper has a pH measurement range of 5.0 to 8.0 pH. The color changes from red to blue.
Blue litmus paper has a pH measurement range of 8.0 to 5.0 pH. The color changes from blue to red.