School Lab Litmus Test Papers

School Lab Litmus Test Papers

Red litmus paper is mainly used to detect alkaline solution,
Nature: when the pH value is higher than 8.3, the test paper turn to blue, less than 8.3, the test paper does not change color
Blue litmus paper is mainly used for the detection of acid solution
Nature: when the pH value is less than 4.5, the test paper turn to red, higher than 4.5, the test paper does not change color.
Comes with 2 portable vials, each filled with easy to use, pre-cut strips.
No external reagents or chemicals needed for accurate testing of solutions
A simple way to determine without a doubt if a solution is acidic or basic, with a second test to confirm your findings.
No color chart needed to determine findings; these tests are designed for determining if the pH is above or below a certain level NOT giving a precise pH value.