Quote Originally Posted by eggshell
One more thing - EDTA stands for Ethylene Diamine Tetraacetic Acid. My test shows it's extremely alkaline (pH10). But it says ACID!
Acetic acid is a weak acid. Amines are a stronger base (hence the pH being basic). However, as for the word Acid being in the name, the structure of the compound is described in the name, and there are four acetic acid groups in the compound, hence tetraacetic acid.