o-Cresolphthalein excellent quality manufacturer, exporter and supplier in visakhapatnam india
VIZAG CHEMICAL O Cresolphthalein Manufacturers,O Cresolphthalein Suppliers,O Cresolphthalein Dealers In Visakhapatnam india. o-Cresolphthalein is a phthalein dye used as a pH indicator in titrations. It is insoluble in water but soluble in ethanol. Its solution is colourless below pH 8.2, and purple above 9.8
o-Cresolphthalein is a reversible pH indicator. The kinetics of the reverse pathway (red-purple to colorless) is slow, thereby making it an appropriate molecule to check flow patterns in ducts with corrugated walls.