期刊名称：Majalah Iptek = IPTEK : The Journal for Technology and Science
印刷版ISSN：0853-4098
电子版ISSN：2088-2033
出版年度：2019
卷号：30
期号：2
页码：32-35
DOI：10.12962/j20882033.v30i2.5000
出版社：IPTEK
摘要：Organic inhibitors have been widely studying to be an alternative corrosion prevention because of its
abundance and non-hazardous effect to the environment. One of organic inhibitors which is obtained from plant extract is
banana (Musa Paradisica) peel, because it has gallocatechin which is a strong antioxidant. Otherwise, inhibition
effectiveness from organic compound decreases during increasing of temperature. However, the addition of other substance
like halide ion has provided multiple effect of corrosion inhibitor effectiveness. The addition of the halide ions can enhanced
the inhibition efficiency of the organic inhibitors. This research highlights the effect of additional halide concentration to the
inhibition effectiveness of Musa Paradisica (banana) peel on API 5 L steel in 3,5% NaCl at temperature 600C. This
inhibition performance is investigated using weight loss measurement and electrochemical measurement. Result shows that
the maximum inhibition efficiency was observed with the mixture of 500 ppm banana peel waaste extract and 100 ppm
potassium iodide at 600C. Also, The blends behaved as mixed type inhibitor. The effectiveness was found to be in order of
KI > KBr due to the larger ionic radius in iodide ion.
