Phenolphthalein Indicator Solution

Phenolphthalein Indicator Solution is a laboratory reagent used as an acid–base indicator in titrimetric and pH-based analyses. The solution is colorless in acidic and neutral media and develops a pink to magenta color in alkaline conditions, making it suitable for routine analytical and teaching laboratory applications.
Key Features
Reliable acid–base indicator for titrations
Clear and sharp color change endpoint
Colorless in acidic solutions; pink in alkaline solutions
Ready-to-use ethanolic formulation
Suitable for analytical, educational, and routine laboratory use
Supplied in amber glass bottle for light protection
Technical grade reagent
Composition
Phenolphthalein
Ethanol
Distilled water
Safety Information
Flammable (ethanolic solution)
Irritant; avoid contact with skin and eyes
Do not ingest
Use in well-ventilated areas
Refer to Safety Data Sheet (SDS) before use
Storage
Store at 10–25 °C
Protect from light
Keep container tightly closed
Keep away from heat and open flames