Notes
The Classification of Acid-Base Indicators…
The Classification of Acid-Base Indicators – Acid-base indicators can be broadly classified into three groups:
(i) Azo indicators (eg; Methyl orange)
(ii) The phthaleins and sulphophthaleins (eg; Phenolphthalein)
(iii) Triphenylmethane indicators (eg; Malachite green)
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