Litmus Blue Paper
Litmus Blue Paper, 4 x 25 per pack.
Johnson Test Papers Litmus Blue Indicator Paper, 4 x 25 per pack for use in solutions. It can be used in Educational or Industrial Sectors. It can also be used for personal use, depending on the solution you are testing.
Remove one of the Litmus Blue papers from one of the books in the pack. Dip the paper into the solution you are testing for around 1-2 seconds and remove. The strips become red in seconds if dipped into a solution that is acidic,and will remain blue if the solution is not acidic.
4 x 25 per pack.