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dc.contributor.advisorSumarji
dc.contributor.advisorFX. Kristianta
dc.contributor.authorEka A.S., Dani
dc.date.accessioned2015-12-31T05:08:44Z
dc.date.available2015-12-31T05:08:44Z
dc.date.issued2014
dc.identifier.urihttp://repository.unej.ac.id/handle/123456789/69515
dc.description.abstractCorrosion is one serious problems that result in the loss in terms of the financing in industrial production activity, the corrosions can be the one failure in a process. So required a inhibitor corrosion that can Reduce the rate of corrosion specimens steel. In this research is using coffee extracts organic compounds as corrosions inhibitor. It can be used as corrosions inhibitor because they are have a free electron couples containing nitrogen. Testing rate of corrosion made in sea-water media with variation coffee extracts concentration 0, 1000, 3000 and 5000 ppm for knowing corrosion rate and the optimum concentration of coffee extract in inhibitions of corrosion rate with type of corrosion on carbon steel pipe A53 is material much used in the system of distilling sea water pipe. The result of this research show about the better consentrations for hamper the corrosion in 3000 ppm with the inhibition is 70,79 % and that corrosion happen is surface corrosion.en_US
dc.language.isoiden_US
dc.publisherUNEJ Pressen_US
dc.subjectinhibitoren_US
dc.subjectcoffee extractsen_US
dc.subjectsea water corrosionsen_US
dc.titlePENGARUH VARIASI KONSENTRASI EKSTRAK KOPI TERHADAP LAJU KOROSI PIPA BAJA KARBON A53 PADA MEDIA AIR LAUTen_US
dc.typeStudent Paperen_US


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