Web Results

Phenolphthalein - Wikipedia


Phenolphthalein has been used for over a century as a laxative, but ... to contain blood, commonly known as the Kastle-Meyer test.



Phenolphthalein is an organic compound (C20H14O4) used as an acid-base indicator. The compound is colorless in acidic solution and pinkish in basic ...

Why do we use phenolphthalein as an indicator in titration? - Quora


Well, you may have used phenolphthalein as the indicator in a particular titration you .... Some other commonly employed indicators are bromothymol blue, thymol blue, alizarine yellow, methyl red, litmus and the list goes on].

Acid-Base Indicators - Chemistry Department - Elmhurst College


The most common method to get an idea about the pH of solution is to use an acid base ... Phenolphthalein is an indicator of acids (colorless) and bases (pink).

Phenolphthalein | Define Phenolphthalein at Dictionary.com


Phenolphthalein definition, a white, crystalline compound, C 2 0 H 1 4 O 4 , used as an indicator in acid-base titration and as a laxative. See more. ... Learn the correct uses of these two commonly confused homophones. What Character Was  ...

BBC - GCSE Bitesize Science - Titrations : Revision


Three indicators are commonly used to show whether a solution is acidic or alkaline: litmus ... Phenolphthalein changes colour sharply at about pH 8. For most ...

acid-base indicators - Chemguide


Methyl orange is one of the indicators commonly used in titrations. ... Phenolphthalein is another commonly used indicator for titrations, and is another weak acid ...

homework - Why is phenolphthalein an appropriate indicator for ...


Mar 17, 2014 ... Why is phenolphthalein an appropriate indicator for titration of a ... Please explain based on the pH at the equivalence point and the transition range for phenolphthalein. .... Is better to use a WiFi channel with high frequency?

6. Acid-Base Indicators - Chemistry LibreTexts


Aug 21, 2015 ... Methyl orange is one of the indicators commonly used in titrations. ... Phenolphthalein is another commonly used indicator for titrations, and is ...



Phenolphthalein is an example of an indicator which establishes this type of equilibrium in ... The table gives examples of common indicators. ... Indicators are used in titration solutions to signal the completion of the acid-base reaction.

More Info

phenolphthalein | C20H14O4 - PubChem


phenolphthalein | C20H14O4 | CID 4764 - structure, chemical names, ... Phenolphthalein is an organic compound used as a laboratory reagent and pH indicator. ...... Available in white or yellow forms; the monosodium salt is the most common ...

What is Phenolphthalein? (with pictures) - wiseGEEK


Phenolphthalein is a mild acid that can be used for medical and scientific purposes. When used in medicine, this compound is most commonly recognized as an ...

Phenolphthalein Is A Commonly Used Indicator That ... | Chegg.com


Answer to Phenolphthalein is a commonly used indicator that is colorless in the acidic form (pH < 8.3) and pink in the basic form ...