CD Skripsi

Pengaruh Daun Ketapang (Terminalia Catappa.L) Sebagai Green Inhibitor Pada Baja Astm A36 Pada Larutan Asam Dan Basa

---

ABSTRACT
Corrosion is damage or deterioration in the quality of a metal caused by
reactions to the environment. Corrosion is a natural process that will never stop
or will continue to occur as long as the metal material is in contact with its
environment. However, the corrosion process can be controlled, minimized, or
slowed down by the addition of an inhibitor. Terminalia catappa. L leaf extract
contains tannins which can be used as an inhibitor to reduce the corrosion rate of
metals. This study aims to determine the concentration of Terminalia catappa. L
leaf extract in reducing the rate of corrosion, to determine the efficiency of the
inhibitor of ketapang leaf extract in reducing the rate of corrosion. This research
begins with the manufacture of ketapang leaf extract using the maceration method
for 6 days with the volume ratio of ethanol-aqua dest solvent (1: 2), (1: 3), and (1:
4) The test method carried out in this research is the weight loss method by using
variations in the concentration of Terminalia catappa. L leaf extract (0, 1.5 and 2
g / L) with long soaking time (36, 48, 60 and 72 hours) in a corrosive solution of
1M HCl and 1M NaOH. The highest corrosion rate in the HCl solution without
the addition of an inhibitor at the immersion time of 72 hours was 258 miles/year,
meanwhile, the lowest corrosion rate was in the NaOH solution with 2 g / L
inhibitor at 72 hours immersion time of 19,31 miles/year. The results of this study
showed that the greater the concentration of Terminalia catappa. L leaf extract
inhibitor in the corrosive medium and the longer the immersion time on the steel
plate, the smaller the corrosion rate. The highest inhibition efficiency value in
HCl corrosion media at 2 g / L inhibitor concentration with a soaking time of 72
hours was 83.32%.
Keyword : corrosion rate, inhibitor, Terminalia catappa. L leaf extract

---

Ketersediaan

Informasi Detail

Judul Seri

-

No. Panggil

07 02. 120 (0133)

Penerbit

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

Deskripsi Fisik

ix, 79 hlm.; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

-

Klasifikasi

07 02. 120 (0133)

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

TEKNIK KIMIA

Info Detail Spesifik

-

Pernyataan Tanggungjawab

Daus

Versi lain/terkait

Lampiran Berkas

Komentar

---

Anda harus masuk sebelum memberikan komentar