Phenolphthalein

$6.50

Phenolphthalein
( 1% solution in Alcohol )
chemical formula: C₂₀H₁₄O₄
( liquid )
Phenolphthalein is a sensitive PH indicator which remains colorless below a PH of 8.2, and turns bright pink above a PH of 10. When mixed with Hydrogen Peroxide & Alcohol, Phenolphthalein can be used as a test for Blood. Typically, very small amounts of Phenolphthalein solution are used for indicating or in experiments (generally a few drops). For this reason, a little of this material goes a long way. Because of its drastic color changing ability, it also finds use in disappearing inks and similar novelties.