Efisiensi inhibisi Ekstrak Kulit Dalam Semangka sebagai Inhibitor Korosi Tinplate dalam Media 2% NaCl

Fitria - Ratnasari, Harmami - -, Ita - Ulfin
Submission Date: 2016-01-29 12:29:28
Accepted Date: 2016-04-28 10:46:37

Abstract


Ekstrak dari kulit dalam semangka telah dipelajari sebagai inhibitor korosi pada tinplate dalam larutan 2% NaCl menggunakan metode pengurangan berat dan polarisasi potensiodinamik. Pada penelitian ini digunakan variasi konsentrasi ekstrak, hasil yang diperoleh memperlihatkan bahwa ekstrak dapat menghambat korosi pada tinplate dengan adanya keterlibatan senyawa L-citrulline dan komponen organik lain. Efisiensi inhibisinya semakin meningkat dengan meningkatnya konsentrasi ekstrak, nilai maksimum sebesar 99,97% pada konsentrasi ekstrak kulit dalam semangka 600 mg/L yang didapat dari metode polarisasi potensiodinamik. Kedua metode yang telah dilakukan tersebut memberikan pola inhibisi yang sama.

 


Keywords


Ekstrak kulit dalam semangka; L-citrulline; NaCl; Tinplate.

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