Product Note:
Add 5 g to 500 mL of ethanol, add 500 mL water. Stir.
Dissolve 1 g of phenolphthalein powder in 500 mL of 50% alcohol.
Add drops of this phenolphthalein solution to 100 mL of 0.5 mol / litre sodium hydroxide solution until a deep pink colour appears. Add colourless phenolphthalein indicator to lime water.