The blue litmus will turn red or pink when it comes into contact with
an acidic solution below pH 4.5. Between 4.5 and 8.3 the paper will be purple. Above 8.3 it will
stay blue. Supplied in plastic vial, about 100 paper strips/vial. Litmus paper is NOT used to
determine the pH level of a solution. If you need to find out the pH level, the correct test paper
to use is the pH paper.
• Pkt of 100 Strips
