Litmus Paper Red/blue pack of 2

Combo Pack of 100 Blue and 100 Red Litmus Paper

Get your students to figure out whether your unknown chemical is an acid or base.

Litmus blue is used for testing the acidity of a solution whereas red is used for testing the alkalinity of a solution.

Test acids and bases for your chemistry experiments! Blue litmus paper turns red in contact with acids and red litmus paper turns blue in contact with basics.

•  1x blue (pH 5-8) and 1x red (pH 5-9)

• 100 test strips for each box
• 2 boxes