Abstract
Because of their biotolerability, nonbioaccumulation, and biodegradability, chemical medicines or drugs are regarded as environmental friendly alternatives to be used for different industrial and biological applications. They are also used as corrosion inhibitors for numerous metals and alloys in hydrochloric acid, sulfuric acid, sodium chloride, phosphoric acid, nitric acid, and hydroxide based electrolytes. Because of their complex molecular structure, they provide excellent corrosion inhibitors. They effectively inhibit corrosion by adsorbing on the metallic surface mainly following the Langmuir adsorption isotherm. They act as mixed- and interface-type corrosion inhibitors. The present chapter talks about the recent progress in using chemical medicines as corrosion inhibitors.
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