ABSTRACT
Tin metal is widely used in packed canned foods and beverages packaging, largely due to less toxicity, corrosion resistivity, lubricity, lacquer ability, formability, solderability, and weldability. The integrity of tinplate (tin-iron alloy) comprises a coating of tin over both faces of carbon steel using various electrolytic processes. Moreover, for solid foods and beverages, 250 mg/kg for tin and 150 mg/kg for iron are recommended as maximum limits. Both the elements are toxic above these permissible concentrations. The excess doses of tin can induce serious digestive disturbances, gastrointestinal upsets, cancer in bones and tissues. The factors affecting corrosion failure and mitigation techniques for the prevention of corrosion in tin plate cans are discussed in this chapter.
