Congo Red Indicator Paper 1.With a distinct color scale for result comparisons 2.Better testing effect

Congo Red Indicator Paper

Introduction & Feature

Congo red  paper is made by Congo red solution soaking.Congo red is acidic indicator, color change range between 3.5 to 5.2, alkali state for red, acid condition as the blue-purple colorRange 3.5-5.2

Specification:

Model  No.	Test Range	U.Price $ / box
101414	Congo Red Indicator Paper	0.58

Way to Use:

Dip the trip into the solution to be tested for half a secondsTake out and contrast with the color chart to get PH readings

Packing:50 boxes / carton

Congo Red Indicator Paper 3.5 to 5.2