The inhibition action of natural honey on the corrosion of copper in a 9[4 M sodium chloride
solution has been evaluated by weight loss measurements and cathodic polarization technique[ A good inhibition
e.ciency is observed which increases with an increase in inhibitor concentration[ After some time the inhibition e.ciency decreased due to the growth of fungi in the medium. The Tafel slope is changed markedly in the presence of natural honey[ The adsorption of natural honey on the copper:chloride interface is found to follow the Langmuir isotherm