Phenol red is a pH indicator. The baking soda is not changing color, but the phenol red is.
Phenol red is a weak acid.
Phenol red is made by condensation of Phenol and saccharine.pH below 6.8 = YellowpH above 8.2 = Red/FuschiaGradually turns from yellow to red/fuschia (pH between 6.8 and 8.2 = Pinkish)
Phenol red acts as the pH indicator. Turning yellow as the ph lowers (acidic environments) and deep red when the ph is high (alkaline environment)
yellow
Phenol is toxic and corrosive.
Phenol red is a pH indicator. The baking soda is not changing color, but the phenol red is.
Phenol red is a weak acid.
A solution of phenol red is a liquid.
Phenol red is made by condensation of Phenol and saccharine.pH below 6.8 = YellowpH above 8.2 = Red/FuschiaGradually turns from yellow to red/fuschia (pH between 6.8 and 8.2 = Pinkish)
To determine if a bacterium can ferment a particular carbohydrate and determine the end products of that fermentation
red
Phenol red is yellow under pH=6,8 and pink over a pH=8,2.
Boil red cabbage in water to make phenol red. This works well depending on how long you boil it will determine the strength of the solution.
Phenol red acts as the pH indicator. Turning yellow as the ph lowers (acidic environments) and deep red when the ph is high (alkaline environment)
phenol red act as the pH indicator. As the substrate urea is split into products, the presence of ammonia caused alkaline environment that cause the phenol red to turn to deep pink. Useful to test Proteus vulgaris.
green