1. Education

Discuss in my forum

Phenolphthalein Indicator Solution

How To Make Phenolphthalein pH Indicator

By

This is the chemical structure of phenolphthalein.

This is the chemical structure of phenolphthalein.

Ben Mills/PD
This is a recipe for making 100 mL of phenolphthalein pH indicator solution.

Materials

  • 0.05 g phenolphthalein [3,3-bis( p-hydroxyphenyl)phthalide]
  • 95% ethanol
  • distilled water

Procedure

  1. Dissolve 0.05 g phenophthalein in 50 mL of 95% ethanol.

  2. Dilute the solution to 100 mL with distilled water.

Projects Using Phenolphthalein

Water Into Wine Demo
Kastle-Meyer Test To Detect Blood
Red, White and Blue Electrolysis Chem Demo
Invisible Ink
Disappearing Ink
Water-Wine-Milk-Beer Demo
Sodium in Water Demonstration
Hot and Cold Color Change
  1. About.com
  2. Education
  3. Chemistry
  4. Chemistry Lab
  5. Lab Recipes
  6. Phenolphthalein Indicator Solution - How To Make Phenolphthalein pH Indicator

©2014 About.com. All rights reserved.