Chlorophenol redChlorophenol red is an indicator dye that changes color from yellow to violet in the pH range 5.4 to 6.8. The pH of a substance is determined by taking the negative logarithm of the Hydronium ion concentration and the indictor changes color due to the dissociation of H+ ions. Read from the Chembox of the Wikipedia article Chlorophenol red, revision 1276259904.

Property

Value

Formula

C19H12Cl2O5S, 423.27 g/mol

Melting point

261 °C

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