Talk:Titration curve

Split from Titration

I have split this article from Titration. -- Alan Liefting (talk) - 11:10, 14 August 2008 (UTC)

Sudden color change

I heard that as you put in the reagent drop by drop, suddenly the beaker turns color.

• Many of us performed ‘titrations’ in high school chemistry where we added reagent drop by drop into a solution until suddenly, with one drop, the entire solution suddenly changed colour. [1]

(I want to use this "fact" as a metaphor for something else.) Is this really a fact?

If so, could it be mentioned in the article, in a reader-friendly way, so that I don't have to be an expert in chemistry to cite it? --Uncle Ed (talk) 13:32, 7 October 2011 (UTC)

It is true that titrations may have endpoints that are best reached with even partial drops of the titrant. Phenolphthalein is a commonly-used indicator that most high school or college students will have been exposed to that will be sensitive to very small volumes of titrant. An online guide that discusses this (located with minimal searching effort, so this may not be the best example) is here: http://www.dartmouth.edu/~chemlab/techniques/titration.html

I suppose there's no harm in adding that to the article. ... Actually on further thought, that mention should likely go in the Titration article under "Procedure" rather than in this article, which is only about the Titration Curve, or the graphical figure produced by titration data. Wevets (talk) 22:12, 28 October 2011 (UTC)