PHENOLPHTHALEIN POWDER is available in 100 gram, 200, 500, 1 Kg, 5 Kg, 25 Kg Powder Pack
Phenolphthalein Indicator Powder and solution manufacturer and supplier. Lab Reagent chemicals Resulting colour is deep pink in alkaline medium.
Product Name ::: Phenolphthalein ( White ) IP
CHEMICAL NAME ::: : 3, 3 Bis (p-Hydroxyphenyl) Phthalide
CAS NO. ::: : 77-09-08
MOLECULAR FORMULA : C20H1404
MOLECULAR WEIGHT : 318.32
Identification : Dissolve in dilute solution of alkali hydroxides & in hot solution of alkali carbonates forming red solution which is decolorized by dilute acids.
Phenolphthalein is used as an acid or base indicator where, in contact or presence of acid, it will turn colorless and with a base, it will turn into a fuchsia color. It is also a component in universal indicator, a solution consisting of a mixture of pH indicators (usually phenolphthalein, methyl red, bromothymol blue, and thymol blue).
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.
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.
It would make sense to titrate to the best possible colour with each indicator. If you use phenolphthalein, you would titrate until it just becomes colourless (at pH 8.3) because that is as close as you can get to the equivalence point.
A strong acid- strong base titration is performed using a phenolphthalein indicator. Phenolphtalein is chosen because it changes color in a pH range between 8.3 – 10. It will appear pink in basic solutions and clear in acidic solutions.
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