Phenolphthalein's common use is as an indicator in acid-base titrations. It also serves as a component of universal indicator, together with methyl red, bromothymol blue, and thymol blue.

Jan 19, 2022 · Learn about phenolphthalein indicator, including its structure, how to make it, and what colors it turns at various pH values.

Phenolphthalein | C20H14O4 | CID 4764 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity …

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 …

Dec 24, 2018 · The origins of phenolphthalein lie in the German chemical industry during the heyday of artificial dye discovery in the late 19th century.

Nov 10, 2025 · Phenolphthalein is a synthetic organic compound and a weak acid that serves as one of the most common and recognizable textpH indicators in chemistry. The compound, …

Phenolphthalein is defined as a yellowish powder that is soluble in alcohol and alkaline solutions, but only slightly soluble in water, exhibiting a colorless form in acidic solutions and red or pink …

Jul 23, 2025 · Phenolphthalein (C20H14O4) is an organic chemical compound often used as an indicator in acid-base titrations. It is slightly soluble in water and usually is dissolved in alcohol …

Nov 1, 2025 · Phenolphthalein serves as a fundamental acid-base indicator in titrations and qualitative analyses. It is valued for its sharp color transition in the alkaline region, which helps …

Apr 17, 2025 · Learn all about phenolphthalein, its structure, colour change, uses in acid-base reactions, formula, pronunciation, and role as a powerful chemical indicator.