Litmus paper book type red 1 box (20 sheets x 10 pieces) 07020020 1 box (20 sheets x 10 pieces)

This product is widely used to determine acidity and alkalinity. This product has excellent sensitivity and discoloration properties, and is made by impregnating high-purity litmus reagent into high-purity (α-cellulose 99% or more) paper. Used to detect alkali, turns blue when it comes into contact with alkaline liquid. Dimensions: 7mm x 70mm Quantity: 1 box (20 sheets x 10 packs)