Premium
A rapid electrochemical test for the assessment of the delamination of lacquered tinplate *
Author(s) -
ALBUYARON ANA,
SEMEL A.,
BERZIN AVIVA
Publication year - 1977
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/j.1365-2621.1977.tb00115.x
Subject(s) - tartaric acid , materials science , citric acid , oxalic acid , oxalate , acetic acid , electrochemistry , nuclear chemistry , chemistry , composite material , inorganic chemistry , organic chemistry , electrode
Summary External cathodic polarization of lacquered tinplate specimens immersed in solutions of different organic acid anion types and pH was employed to study the delamination produced around a deliberately introduced defect in the coating. Attempts were made to utilize this technique as the basis for a rapid, simple and reproducible method for the evaluation and prediction of the suitability of lacquered tinplate samples exposed to different food media. Results of experiments conducted with three types of lacquers on tinplate in citric, malic, oxalic, tartaric, fumaric, lactic and acetic acids at pH's ranging from 2.5 to 6.0, showed good reproducibility as well as good agreement with results from an accelerated immersion test and with those from actual cases of canned foods.