Natural honey as the corrosions inhibator for zinc in South China Sea water

Abstract

The corrosion inhibition of zinc by present of natural honey was investigated in the presence of South China seawater at atmospheric condition. The effects of South China seawater on the corrosion behavior of zinc, using natural honey inhibitor have been carried out by mass change monitoring. The morphology of the corroded zinc surface was observed using scanning electron microscope. Seawaters have the sufficient corrosive environment due to the chemical ingredients especially of the halides compounds. Natural honey is an organic compound, which can control the corrosion rates of zinc in seawater. The zinc samples were immersed in the South China seawater for a period of seven weeks and corrosion occurred. The rate of the corrosion has a inverse proportional relation to the amount of inhibitor used. The inhibition efficiency of the natural honey for zinc metal in 7 weeks of observation is approximately 83.18% for the average.