Where can i find phenolphthalein?
Phenolphthalein is a relatively common substance. It is used as an indicator of acid-base, as a laxative, and on CSI they use it to test for the presence of blood. It does not dissolve well in water, so if you get it as a powder, dissolve it in denatured alcohol from the hardware store. Try a toy store that has chemistry set supplies, a store that sells pool chemical testing supplies, or ask your druggist. A a last resort, try Fisher Scientfic. If your project is using it as an acid-base indicator, almost any such indicator will do, such as methyl blue or even PH indicator strips.
