Litmus paper in a paper box (red) 1200 sheets 07020130 1 box (1200 sheets)

It is widely used to determine alkalinity; when it comes into contact with an alkaline liquid, the red filter paper turns blue. Red is for detecting alkali and turns blue when 1 drop of pH 8.0 buffer solution is dropped on it. Sensitivity: turns blue when 1 drop of pH 8.0 buffer solution is dropped on it. Size (mm): 10 x 60 Quantity: 1 box (100 sheets) x 12 boxes