Abstract
Vol 7 No 2ABSTRACTExtract of Phaleria macrocarpa leaves have been studied as corrosion inhibitor for mild steel ofhydrochloric acid solution 2.0 N. The efficiency of inhibition was evaluated by gasometric methodand electrochemical analysis. The temperature and concentration effects on the inhibitorsperformance were also investigated. The result obtained showed that the extract is one of promisingcandidate as an inhibitors for the corrotions of mild steel in HCl media, inhibition efficiencyincrease as the extract concentration is evaluated. The activation energy (Ea) increase with theaddition of the extract. Where inhibition of extract on the steel surface obey modified Langmuirisotherm equation. Potentiodynamic polarization curve indicated the Phaleria macrocarpa leavesextract play role as the anodic type inhibitor.Keywords : Corrosion inhibition, mild steel, Phaleria macrocarpa, hydrochloric acid.
Highlights
Dalam proses industri, biasanya digunakan larutan asam untuk membersihkan kerak dan karat yang melekat di permukaan baja
Extract of Phaleria macrocarpa leaves have been studied as corrosion inhibitor for mild steel
of hydrochloric acid solution 2.0 N. The efficiency of inhibition was evaluated by gasometric method
Summary
Alat dan bahan yang digunakan adalah daun mahkota dewa Phaleria macrocarpa (Scheff) yang diperoleh dari daerah Lubuk Buaya Padang, metanol, HCl, aseton, akuades, baja st 37, neraca analitis, amplas besi, oven, potensio eDaq, carton stereo trinocular fotooptik, rotary evaporator, hotplate, dan alat-alat gelas
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
