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Phenolphthalein's common use is as an indicator in acid-base titrations. ... Structure, Phenolphthalein-very-low-pH-2D-skeletal.svg ...

phenolphthalein | C20H14O4 - PubChem


phenolphthalein | C20H14O4 | CID 4764 - structure, chemical names, physical and ... is an organic compound used as a laboratory reagent and pH indicator.

Phenolphthalein | C20H14O4 | ChemSpider


Structure, properties, spectra, suppliers and links for: Phenolphthalein, 77-09-8.

Phenolphthalein Chemical Structure - Chemistry - About.com


This is the chemical structure of phenolphthalein. ... How To Make Phenolphthalein pH Indicator · Vitamin Chemical Structures · Water Molecular Formula · Ads.

This is the chemical structure of phenolphthalein. This is a recipe for making 100 mL of phenolphthalein pH indicator solution. More »
By Anne Marie Helmenstine, Ph.D., About.com Guide

acid-base indicators - Chemguide


Describes how indicators work, and their use in various acid-base titrations. ... In an alkaline solution, methyl orange is yellow and the structure is: ... Phenolphthalein is another commonly used indicator for titrations, and is another weak acid.



Consider an indicator which is a weak acid, with the formula HIn. ... Phenolphthalein is an example of an indicator which establishes this type of equilibrium in ...

91055 Phenolphthalein Is Pink in Base - Flinn Scientific


Phenolphthalein is a large organic molecule used as an acid–base indicator. ... Phenolphthalein has the colorless structure shown in Figure 1 when the solution  ...

Acid and Base Indicators - Chemwiki


Oct 10, 2013 ... Phenolphthalein is an indicator of acids (colorless) and bases (pink). ... the five- sided ring in the center opens and the electronic structure ...



Consider an indicator which is a weak acid, with the formula HIn. ... Phenolphthalein is a colorless, weak acid which dissociates in water forming magenta ...

Popular Q&A
Q: What structure of phenolphthalein indicator and the reaction of t...
A: hc20h1354. Read More »
Source: wiki.answers.com
Q: How to remember the structures of indicators such as phenolphthal...
A: Hmm Intresting. Read More »
Source: answers.yahoo.com
Q: What is the structure of phenolphthalein?
A: The IUPAC-name of phenolphtalein is. 3,3-bis(4-hydroxyphenyl)isobenzofuran-1(3. H.one. The structural formula is in 'related links' below this answering page. Read More »
Source: wiki.answers.com
Q: What is the color of phenolphthalein indicator.
A: it is colorless but it will turn pink to indicate that the end-point has been reached. Read More »
Source: www.answers.com
Q: Why you are adding phenolphthalein as a indicator.
A: One would add phenolphthalein as an indicator for bases with a pH of 8.2 to 10.0. If the phenolphthalein changes color from colorless to pink or red, a base wit... Read More »
Source: www.answers.com