MSI B0034-500ML

Aqueous solutions of bromocresol green and methyl red are commonly used for alkalinity determination, especially in environmental and water quality testing. This mixture of indicators provides a convenient method for detecting the endpoint of alkalinity titrations.

• Bromocresol Green: This is a pH indicator dye that changes color in response to changes in the acidity or alkalinity of a solution. In an acidic solution, it appears yellow, but as the pH increases and the solution becomes more alkaline, it transitions to blue.
• Methyl Red: Like bromocresol green, methyl red is also a pH indicator dye. It changes color depending on the pH of the solution. In an acidic solution, methyl red appears red, but in a basic (alkaline) solution, it turns yellow.

The mixed aqueous solution of bromocresol green and methyl red provides a clear and distinct color change at the endpoint of the titration, making it suitable for accurately determining alkalinity in various aqueous samples, including water sources, wastewater, and environmental samples.