Manufacturer, Distributor, Supplier, BromoPhenol Red based in visakhapatnam India.
Vizag chemical BromoPhenol Red or Phenol red exists as a red crystal that is stable in air. 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.
A solution of phenol red is used as a pH indicator: its color exhibits a gradual transition from yellow to red over the pH range 6.8 to 8.2. Above pH 8.2, phenol red turns a bright pink (fuchsia) color.
Phenol red (pH indicator)
below pH 6.8 above pH 8.2
6.8 ↔ 8.2