PerAcetic Acid is an antimicrobial agent which is known to find application for food processing, agricultural, and medical industries. It has chemical formula C2H4O3 with molecular weight of 76.05 g/mol and 1.0375 g/ml density. This acid appears as colorless liquid and has melting point of 0 degrees Celsius. It is also utilized in pulp industry for preventing formation of biofilm and as water purifier. PerAcetic Acid also serves as disinfectant for cooling towers and inhibits growth of Legionella. It is an organic compound with corrosive property and shows acidity value of about of 8.2 pKa.