Phenolphthalein indicates the presence of an acid or base within substance. When there is a base present the phenolphthalein will create a pink to fuchsia color. When an acid is present the phenolphthalein will create a colorless to orange color.
The IUPAC-name of phenolphtalein is 3,3-bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one
The structural formula is in 'related links', below this answering page.
C20h14o4
C20H14O4
To indicate when the substance has been neutralized
phenolphthalein
The color is pink with phenolphthalein.
Phenolphthalein dissolves in water to get a clear transparent solution.
Phenolphthalein is an indicator often used in chemical titrations. Phenolphthalein is colorless in acidic solutions and turns pink in basic solutions. The more basic the solution the pinker the solution will become when Phenolphthalein is present.
phenolphthalein, methyl orange.
To indicate when the substance has been neutralized
Phenolphthalein changes from colorless to pink in the range of pH 8.2 - 10. If toothpaste has a pH that is below this range, phenolphthalein will not indicate the basicity. if the pH is higher, which I believe it is in most (some) toothpastes, then phenolphthalein can be used, because it will turn from colorless to pink.
phenolphthalein
Phenolphthalein is made up of, H20, C14, O4,
Yes, phenolphthalein is a compound with the molecular formula C20H14O4.
The color is pink with phenolphthalein.
Phenolphthalein dissolves in water to get a clear transparent solution.
Phenolphthalein is an indicator often used in chemical titrations. Phenolphthalein is colorless in acidic solutions and turns pink in basic solutions. The more basic the solution the pinker the solution will become when Phenolphthalein is present.
In a basic medium phenolphthalein changes color frompink to colorless.
Phenolphthalein turns pink in a base and turns colourless in a base
No, phenolphthalein remains colourless in the presence of an acid.