Analytical Reagents,
Analytical/Chromatography,
Application Specific Reagents,
Test Papers/Sticks,
pH Papers/Sticks
Description:
Packaging
box of 200 strips
General description
Congo paper is formed by impregnating filter paper with Congo red reagent. This reagent is a red-brown powder and gives a colloidal suspension when dissolved in water. It is used as an acid-base indicator. At pH 3.0 to 5.2, the colour changes from blue-violet to red.