3.53. 4a: Methyl Red is a sensitive indicator for titration of weak organic bases and ammonia. Dissolve 1 g of methyl red powder in 500 mL of 60% alcohol. Use 2 drops for 25 mL of liquid in a titration. Our Methyl Red (MR) Reagent is an indicator solution used to indicate the pH of the broth culture in the methyl red test. The methyl red test is used to detect the ability of an organism to produce and maintain acid end products from glucose fermentation.
Methyl red is a pH indicator; it is red in pH under 4.4, yellow in pH over 6.2, and orange in between, with a pKa of 5.1. Murexide and methyl red are investigated as promising enhancers of sonochemical destruction of chlorinated hydrocarbon pollutants.
Our Methyl Red (MR) Reagent is an indicator solution used to indicate the pH of the broth culture in the methyl red test. The methyl red test is used to detect the ability of an organism to produce and maintain acid end products from glucose fermentation.
This test is used to determine which fermentation pathway is used to utilize glucose. In the mixed acid fermentation pathway, glucose is fermented and produces several organic acids