Web Results

Phenolphthalein - Wikipedia


Phenolphthalein is a chemical compound with the formula C20H14O4 and is often written as ... because of the reaction with carbon dioxide. Thymolphthalein is used for the same purpose and in the same...

What is the function of an indicator in a titration? | Reference.com


The function of an indicator in a titration process is to determine the ... examples of pH indicators are methyl orange, methyl red, phenol red and phenolphthalein.

phenolphthalein | C20H14O4 - PubChem


Phenolphthalein is an organic compound used as a laboratory reagent and pH indicator. Phenolphthalein exerts laxative effects by stimulating the intestinal ...

What is the function of phenolphthalein in titration - Answers.com


The easiest way is to add back some of the solution you were titrating. If phenolphthalein remains, it will react with the solution and change back to purple .

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


Nov 25, 2015 ... Well, you may have used phenolphthalein as the indicator in a particular titration you ... First, what's the purpose of an acid-base indicator? Well ...

Effect of phenolphthalein on the function and structure of rodent and ...


Abstract. Phenolphthalein (PHE) is the active ingredient in at least 12 over-the- counter laxative preparations. It is alleged to have a minor effect in the small ...

Acid-Base Indicators - Chemistry Department - Elmhurst College


Phenolphthalein is an indicator of acids (colorless) and bases (pink). Sodium hydroxide is a base, and it was in the pitcher at the beginning, so when added to  ...

www.ask.com/youtube?q=Function of Phenolphthalein&v=kZhi1FXXYXg
Dec 1, 2011 ... Phenolphthalein Structure Function Relationship ... AP Chemistry Lab 11 - Phenolphthalein as a pH Indicator - Duration: 2:13. Ward's Science ...

Forensic Science - Phenolphthalein (Blood)


Phenolphthalein is a presumptive test that reacts with the heme molecule present in blood. A positive reaction gives a pink color. While bloodstains normally ...



Phenolphthalein is a colourless, weak acid which dissociates in water forming pink anions. Under acidic conditions, the equilibrium is to the left,and the ...