PHENOLPHTHALEIN INDICATOR
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Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions. ... It is a weak acid, which can lose H+ ions in solution.
Key facts
- Product
- PHENOLPHTHALEIN INDICATOR
- Part No.
- RXSOL-60-6605-218
- Category
- Cooling Water Chemical
- Supplier
- Muscat Chemical, Barka, South Al Batinah, Oman
- Delivery
- Muscat, Sohar, Salalah, Duqm, Nizwa, Sur, Barka and Gulf ports
- Documents
- MSDS and TDS on request
- Pricing
- Quote on request — contact us or WhatsApp +968 77333599
Phenolphthalein, (C20H14O4), an organic compound of the phthalein family that is widely employed as an acid-base indicator. As an indicator of a solution's pH, phenolphthalein is colourless below pH 8.5 and attains a pink to deep red hue above pH 9.0.
Dosage
Useful Area
Phenolphthalein is basic indicator which remain colorless in acidic and neutral solution and turns pink or magenta in basic solution. If few drops of NaOH is added again to the same solution, the solution become basic and the pink color of the phenolphthalein reappears.
Industrial Usage
Phenolphthalein is a colourless, weak acid which dissociates in water forming pink anions. Under acidic conditions, the equilibrium is to the left,and the concentration of the anions is too low for the pink colour to be observed.