Less toxic corrosion inhibitors can be designed, if one has a reliable method of estimation of toxicity of these compounds before these are actually synthesized. This paper deals with a review of various methods of estimation of aquatic toxicity of organic compounds and highlights the relationship between the structures of these inhibitors and their aquatic toxicity. Such relationships can form the basis for changing the structure of the existing corrosion inhibitors to make these lesser toxic.
Key Words: Aquatic toxicity, QSAR, Corrosion Inhibitors, Non -Toxic.