CD Skripsi

Efektifitas Ekstrak Daun Ketapang (Terminalia Catappa L.) Sebagai Inhibitor Korosi Pada Aluminium Dalam Larutan Asam Dan Basa

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ABSTRACT
Corrosion is a decrease in metal quality due to electrochemical reactions with the
environment. Metals that experience a decline in quality not only involve chemical
reactions but also electrochemical reactions, namely between the materials
concerned with the transfer of electrons. The greater the concentration of chloride
ions, the faster the corrosion process that occurs in the environment. One method
of inhibiting the process of corrosion is by using a corrosion inhibitor. This study
aims to determine the concentration of ketapang leaf extract in reducing the
corrosion rate of metals, and to determine the inhibitor efficiency of ketapang leaf
extract in reducing the rate of corrosion. This research began with the
preparation of ketapang leaf extract using the socletation method for 12 hours
with the volume ratio of ethanol solvent of aquades (1: 3). The test method in this
study was the weight loss method using variations in the concentration of
ketapang leaf extract (0; 1.5; 2gr / L) with long immersion time (24, 36,48,72
hours) in a corrosive solution of 0.1HCl dan 0.5M NaOH. The highest corrosion
rate in NaOH solution without inhibitor at 72 hours immersion time was 212.2
mpy. The results of this study showed that the greater the concentration of
ketapang leaf extract in the corrosive medium and the longer the immersion time
on the aluminum plate, the smaller the corrosion rate. The highest inhibition
efficiency value in the NaOH corrosion medium with a concentration of 2gr / L
with a soaking time of 72 hours was 93.59%.
Keyword : corrosion rate, inhibitor, ketapang leaf extract

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 02. 120 (0134)

Penerbit

Pekanbaru : Universitas Riau – Fakultas Teknik – Teknik Kimia., 2020

Deskripsi Fisik

xii, 29 hlm.; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 02. 120 (0134)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

TEKNIK KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

Daus

Versi lain/terkait

Lampiran Berkas

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