Corrosion Inhibition Effect of a Non-toxic Waste Compound on Stainless Steel in 0.5 Molar Concentration of Sulfuric Acid

2021 ◽  
Vol 7 (3) ◽  
Author(s):  
O. Sanni ◽  
A. P. I. Popoola
2014 ◽  
Vol 699 ◽  
pp. 186-191 ◽  
Author(s):  
Sami Ullah ◽  
Mohd Shariff Azmi ◽  
Muhammad Nadeem ◽  
Mohammad Azmi Bustam ◽  
Shaukat Ali Shahid ◽  
...  

The inhibition of corrosion of stainless steel (SS)-410 in sulfuric acid using thiourea and three different surfactants, cetyle trimethyl ammonium bromide (CTAB), sodium dodecyl sulfate (SDS) and X-Triton was studied. Corrosion rates were determined by using corrosion coupons. The corrosion rate was found to be decreased with increase in inhibitor concentration. It was observed that the maximum corrosion inhibition occurred in the post micellar concentration of the surfactants. By optimizing the corrosion inhibition performance of different blends of surfactants and thiourea in 3 M H2SO4,the corrosion inhibition order was found as: Triton X-100 + thiourea > CTAB + thiourea > SDS + thiourea. The best results obtained by the addition of 200 ppm thiourea in 500 ppm of Triton X-100 in 3 M H2SO4acid solution. This blend decreased the corrosion rate of SS-410 to 657.66 mpy.


Author(s):  
Amaal S. Sadiq ◽  
Entesar O. Al-Tamimi

A new poly chain derivative of polyacrolein has been synthesized from the two basic precursors, polyacrolein and aromatic amine/substituted amine in chloroform to prepare poly Schiff base compounds (A1-A4). The novel poly subs.β-lactam derivative is obtained via coupling of poly schiff base with chloroacetyl chloride and trimethylamine (B1-B4). Newly synthesized compound was identified via spectral methods; their [13C-NMR, 1H-NMR, and FTIR] also measurement of some of its physical properties. Furthermore the inhibition effect of synthesized compounds (B1-B4) on the corrosion of stainless steel in 1N HCl was studied by wight loss method. The results of weight loss measurements showed that corrosion inhibition efficiency by increasing the concentration of organic inhibitors for stainless steel in 1M HCl solution at 30°C.


2013 ◽  
Vol 681 ◽  
pp. 3-6 ◽  
Author(s):  
Rui He ◽  
Zhen Fa Liu ◽  
Ning Gu

Corrosion inhibition performances of polyaspartic acid(PASP) and Sulfuric acid high cerium to copper in Citric Acid solution was studied using electrochemical method. The results showed that PASP and Sulfuric acid high cerium mainifested very good synergy effect. When the total concentration was 0.1g/L, the inhibition efficiency reach 80.8% on the basis of 1:1.


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