- Red Litmus Paper tests pH and indicates a basic solution
- 100 strips per vial
- pH 6.8 - 8.1
Red Litmus Paper is a P.H. tester for Base or Alkaline. pH 6.8 - 8.1 100 strips per vial. Red litmus papers turn blue for caustic solutions, with pH values higher than 7 (neutral). This is used in many science projects. Each strip measures approx .25 inches x 1.75 inches.