RXSOL
Lab Chemical
PHENOL RED INDICATOR SOLUTION
SKU: RXSOL-60-6605-215
Phenol red is a water-soluble dye used as a pH indicator, changing from yellow to red over pH 6.6 to 8.0, and then turning a bright pink color above pH 8.1. As such, phenol red can be used as a pH indicator dye in various medical and cell biology tests.
Application
Phenol Red Indicator Solution: Dissolve 0.1 g of phenol red in 2.82 ml of 0.1 M sodium hydroxide and 20 ml of ethanol (95 percent). After the solution is effected, add sufficient water to produce 100 ml.
Dosage
Its solubility is 0.77 grams per liter (g/l) in water and 2.9 g/l in ethanol. It is a weak acid with pKa = 8.00 at 20 °C (68 °F). A solution of phenol red is used as a pH indicator, often in cell culture.
