Room temperature electrosynthesis of TinO2n-1 film and its bilayer with PNMPy on mild steel for corrosion protection in sulphuric acid

2021 ◽  
pp. 137996
Author(s):  
Nuran Özçiçek Pekmez ◽  
Merve Uğur ◽  
Erhan Karaca ◽  
Zeliha Ertekin ◽  
Kadir Pekmez
Keyword(s):  
Mild Steel ◽  
Sulphuric Acid ◽  
Corrosion Protection ◽  
Room Temperature

scholarly journals 1-Butyl-3-Methylimidazolium Chloride Ionic Liquid as Inhibitor for Corrosion Protection of Mild Steel in Acidic Media

2019 ◽  
Vol 7 (4.14) ◽  
pp. 146
Author(s):  
A A. Ahmad Tarmizi ◽  
L Peter ◽  
D Ahtoi ◽  
R Yusof ◽  
S N.A. Syed Ismail ◽  
...  
Keyword(s):  
Weight Loss ◽  
Ionic Liquid ◽  
Mild Steel ◽  
Sulphuric Acid ◽  
Corrosion Protection ◽  
Corrosion Performance ◽  
Weight Loss Measurement ◽  
Scanning Electronic Microscopy ◽  
Acidic Media ◽  
Loss Measurement

Corrosion inhibitor is a substance added to the corrosive environment in small quantities to reduce the corrosion a metal. The addition of inhibitors will reduce the corrosion rate of the metal by retarding the corrosion process on the metal surface. Thus, this study focused on the study of the effectiveness of 1- butyl-3-methylimidazolium chloride ([EMIM]Cl) ionic liquid as an inhibitor for corrosion protection of mild steel. Two different concentrations of [EMIM]Cl (0.05 M and 0.5 M) were tested into different concentrations of sulphuric acid (0.05M, 0.10 M, 0.15 M, 0.20 M and 0.25 M). Weight loss measurement was used to determine the effectiveness of the [EMIM]Cl as inhibitor for corrosion protection. Results showed that acid concentrations play an important role for the corrosion protection process in the presence of the inhibitor. The weight loss increases as the concentration of the acid increased. The study also revealed that the concentrations of [EMIM]Cl ionic liquid effect the performance of the inhibitor. From this study, 0.5 M of [EMIM]Cl ionic liquid shows better corrosion performance compared to 0.05 M of [EMIM]Cl. At 0.25 M of sulphuric acid, the weight loss of untreated metal increased drastically from 0.0075 g at 0.5 hour to 0.0974 g at 24 hours. After treated with 0.5 M of [EMIM]Cl, the weight loss measurement slightly increased from 0.0027 g at 0.5 hour to 0.0179 g at 24 hours. This weight loss value is lower compared to mild steel treated with 0.05 M [EMIM]Cl which is 0.0469 g at 24 hours. The performance of the inhibitor in two different type of acid was also investigated. The morphology of the untreated mild steel and mild steel treated with [EMIM]Cl was investigated by scanning electronic microscopy (SEM)  

Mesoporous CeO2 containers in water-borne epoxy coatings for dual active corrosion protection of mild steel

2021 ◽  
Vol 158 ◽  
pp. 106376
Author(s):  
Songhua Gu ◽  
Hongwei Shi ◽  
Chunjie Zhang ◽  
Wei Wang ◽  
Fuchun Liu ◽  
...  
Keyword(s):  
Mild Steel ◽  
Corrosion Protection ◽  
Epoxy Coatings ◽  
Mesoporous Ceo2 ◽  
Water Borne ◽  
Active Corrosion

The synthesis of Cyclododecane-r-1,c-5,c-9-triamine and r-1,c-5,c-9-Tris(2,3-dimethoxybenzamido)cyclododecane

1975 ◽  
Vol 28 (3) ◽  
pp. 673 ◽  
Author(s):  
DJ Collins ◽  
C Lewis ◽  
JM Swan
Keyword(s):  
Aqueous Solution ◽  
Acid Hydrolysis ◽  
Sulphuric Acid ◽  
Sodium Carbonate ◽  
Sodium Azide ◽  
Room Temperature ◽  
Dimethyl Formamide ◽  
Lithium Aluminium Hydride ◽  
Lithium Aluminium ◽  
Hydrolysis Of

Treatment of cyclododecane-r-1,c-5,c-9-triyl tris(p-toluenesulphonate) with sodium azide in dimethyl-formamide at 100� for 6 h gave the corresponding cis,cis-triazide which upon hydrogenation or reduction with lithium aluminium hydride gave cyclododecane-r-1,c-5,c-9-triamine, isolated as the tris-salicylidene derivative. Acid hydrolysis of this, removal of the salicylaldehyde, and treatment of the aqueous solution with sodium carbonate and 2,3-dimethoxybenzoyl chloride gave r-1,c-5,c- 9-tris(2,3-dimethoxybenzamido)cyclododecane. ��� Treatment of (E,E,E)-cyclododeca-1,5,9-triene with an excess of acetonitrile and sulphuric acid at room temperature for three days gave 18% of (E,E)-1-acetamidocyclododeca-4,8-diene; no di- or tri-amides were isolated.

The fretting wear of mild steel from room temperature to 200°C

Wear ◽  
1972 ◽  
Vol 19 (2) ◽  
pp. 207-229 ◽  
Author(s):  
P.L. Hurricks
Keyword(s):  
Mild Steel ◽  
Room Temperature ◽  
Fretting Wear
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