A database about Preparation of Laboratory Reagents. A Project of SCIENCE Pakistan

m-Cresol Purple Indicator

Meta Cresol Purple, m-cresolsulfonphthalein

Color change: Yellow to purple
pH: 7.4 to 9.0

Preparation
  1. Grind 0.1 g of m-cresolsulfonphthalein in a mortar
    with 26.2 mL of 0.01 N sodium hydroxide. 
  2. Dilute to 250 mL with distilled water and mix.
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