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All Journal Jurnal Katalisator
Sari Wahyuni
Universitas Andalas
Agriculture, Biological Sciences & Forestry Chemistry

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EKSTRAK DAUN KECAPI SEBAGAI INHIBITOR KOROSI BAJA DALAM MEDIUM ASAM KLORIDA Sari Wahyuni; Emriadi Emriadi; Suryati Suryati
JURNAL KATALISATOR Vol. 7 No. 1 (2022): Jurnal Katalisator Volume 7 Nomor 1, April 2022
Publisher : LLDIKTI X Sumbar, Riau, Jambi, Kepri

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (558.445 KB) | DOI: 10.22216/katalisator.v7i1.921

Abstract

Kecapi (Sandoricum koetjape, (Burm.f.) Merr) leaf extract contains secondary metabolites such as alkaloids, flavonoids, phenolics and triterpenoids which may be an environmentally friendly corrosion inhibitor. The method used in extraction of kecapi leaves in 1 N hydrochloric acid as a steel corrosion inhibitor was carried out by weight loss, FTIR (Fourier Transform Infrared) and SEM (Scanning Electron Microscopy) methods. The data from the weight loss method revealed that the rate was inversely proportional to the concentration of the inhibitor and directly proportional to the temperature, while the value of the efficiency inhibition was directly proportional to the temperature and concentration of the inhibitor. The maximum efficiency inhibition value obtained was 86.61% at an extract concentration of 6 g/L and an immersion temperature of 60oC. The adsorption of kecapi leaf extract followed the Langmuir adsorption isotherm.
Co-Authors Emriadi - Suryati