Benzoic acid, salicylic acid, Anthranilic acid, 2- Nitro benzoic acid, 2- Chlorobenzoic acid compounds containing
acidic group as a corrosion inhibitor for carbon steel was investigated. The study revealed that the various group such as (-
COOH, OH, Cl and –NO2) containing in organic compounds has an inhibitory action on the corrosion of carbon steel in the
investigated medium. Corrosion rate of mild steel was studied using chemical weight loss method at room temperature.