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I've done this reaction in many different varieties.
The reaction is actually 2 condensation reactions between 2 equivalents phenol and phthalic acid in acidic conditions. The original Bayer process from the 1890s was in concentrated sulphuric acid. Modern reaction tend to use methylsulfuric acid (e.g New J. Chem., 1999, 23, 1187 - 1192).
Wiki User
∙ 13y ago
Wiki User
∙ 10y agoThe formation of hydrogen and xenon gases are the most common outcome of the electro phthalein test to excite the bromine molecules in the said formation.
Wiki User
∙ 9y agoPhenolphthalein reacts with base substances. It shows a colour change when reacted with bases. So it is considered as a synthetic indicator.
Wiki User
∙ 7y agoPhenolphthalein is a pH indicator because has different colors in acidic and basic solutions.
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What colour changes will appear when phenolphthalein is mixed with sodium chloride solution?
Sodium Chloride is neutral. And Phenolphthalein is colourless when neutral.
What happens when you mix calcium hydroxide and phenolphthalein?
It changes colors
What will be the color of phenolphthalein when added to a solution of hydroxide?
maroon maroon
Why phenolphthalein is chosen as the suitable indicator for sodium hydroxide?
Sodium hydroxide is a base. And phenolphthalein is a pH indicator that changes color at around a pH of 8.4, so you can tell when your solution that endpoint.
What is the evidence for a shift in equilbrium when ammonium chloride was added to the stock solution in hydroxide phenolphthalein?
What is the evidence for a shift in equilibrium's when ammonium chloride was added to the stock solution in hydroxide phenolphthalein? In: http://wiki.answers.com/Q/FAQ/2455 [Edit categories]
Does phenolphthalein react with salts?
No, it will not
Why only use a few drops of phenolphthalein?
Use a few drops of phenolphthalein because it has acid base properties. Large amounts will react with acids or bases different from your studies.
Does sodium carbonate react with phenolphthalein indicator?
no, only liquids w/ a ph below 7.0
How could you determine whether phenolphthalein remains in the residue of a titration reaction?
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. Incidentally, phenolphthalein will always remain in the solution of the titration reaction - it changes color depending upon the pH of the solution, but the indicator itself is not affected by the titration reaction.
Which is more polar bromophenol blue or phenolphthalein?
phenolphthalein
Is phenolphthalein a compound?
Yes, phenolphthalein is a compound with the molecular formula C20H14O4.
What is phenolphthalein made of?
Phenolphthalein is made up of, H20, C14, O4,
What is the color of lime water when phenolphthalein is added into lime water?
The color is pink with phenolphthalein.
What happens when water is added to phenolphthalein?
Phenolphthalein dissolves in water to get a clear transparent solution.
When phenolphthalein is added to ammonium hydroxide is the color of the final solution is pink?
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.
Why phenolphthalein get colour on basic medium?
In a basic medium phenolphthalein changes color frompink to colorless.
Phenolphthalein goes what colour in a base?
Phenolphthalein turns pink in a base and turns colourless in a base
