Tags: Chemical Compound, Chemical Substance.
Peracetic acid (also known as peroxyacetic acid or PAA) is an organic compound with the formula CH3CO3H. This organic peroxide is a colorless liquid with a characteristic acrid odor reminiscent of acetic acid. It can be highly corrosive.Peracetic acid is a weaker acid than the parent acetic acid with a pKa of 8.2.