Open AccessTHE CORROSION PROTECTION ON STEEL PIPE ST 41 IN WATER PLUMBING ENVIRONMENTAL USING NATRIUM CARBONATE (NA2CO3) AS INHIBITOR
Author(s) -
I Gusti Ayu Arwati,
Titia Izzati,
Zaenal Arifin
Publication year - 2016
Publication title -
international journal of innovation in mechanical engineering and advanced materials
Language(s) - English
Resource type - Journals
eISSN - 2477-5428
pISSN - 2477-541X
DOI - 10.22441/ijimeam.2016.1.004
Subject(s) - corrosion , sodium carbonate , carbon steel , corrosion inhibitor , sodium , metallurgy , nuclear chemistry , materials science , chemistry
This study aimed to analyze the effect of adding to the rate of steel corrosion inhibitor and comparing the rate of corrosion on steel pipes with and without inhibitors.The testing conducted in Puspitek shown that the most optimum inhibitor contained in the addition of 1% due to changes in the price of the original acidity (pH) from 7.30 to 11.80. This shows the increasing of pH occurred sizable value and followed by the declines of potential value (Ecorr) -700.53 mV to -512.39 mV. Thus, the decreasing accured to the current corrosion value (Icorr) from 2.71 μA/cm 2 to 0.31 μA/cm 2 , while the corrosion rate of carbon steel St 41 decreased most effective after adding 1% Na 2 CO 3 as inhibitor, the corrosion rate is changed from 1.2437 mpy to 0.1427 mpy.