scholarly journals The Inhibition Effect of Corrosion of Carbon Steel in Seawater by Diethylene Triamine Pentamethylene Phosphonic Acid and Al3+ System

2013 ◽  
Vol 2 (2) ◽  
pp. 570-574 ◽  
Author(s):  
K. KAVIPRIYA K. KAVIPRIYA ◽  
J. SATHIYABAMA J. SATHIYABAMA ◽  
P. PRABHAKAR P. PRABHAKAR ◽  
S. RAJENDRAN S. RAJENDRAN
Keyword(s):  
Carbon Steel ◽  
Phosphonic Acid ◽  
Inhibition Effect ◽  
Diethylene Triamine

Inhibition Effect of Environment-Friendly Inhibitors on the Corrosion of Carbon Steel in Recirculating Cooling Water

2015 ◽  
Vol 54 (7) ◽  
pp. 1971-1981 ◽  
Author(s):  
Chengjun He ◽  
Zhipeng Tian ◽  
Bingru Zhang ◽  
Yu Lin ◽  
Xi Chen ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Cooling Water ◽  
Environment Friendly ◽  
Inhibition Effect

Corrosion Inhibition of N,N- diethylammonium O,O′- di (p-chlorophenyl) dithiophosphate for Carbon Steel in HCL Solution

2013 ◽  
Vol 781-784 ◽  
pp. 299-303
Author(s):  
Shu Lan Cai ◽  
Kang Quan Qiao ◽  
Fa Mei Feng
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Carbon Steel ◽  
Corrosion Inhibition ◽  
Mixed Type ◽  
Electrochemical Impedance ◽  
Equivalent Circuit Model ◽  
Inhibition Effect ◽  
Inhibition Process ◽  
Hcl Solution ◽  
Mixed Type Inhibitor

A new corrosion inhibior N,N-diethylammonium O,O-di (p-chlorophenyl) dithiophosphate (EDPDP) has been synthesized and its inhibition effect towards the corrosion of carbon steel in 1.0 molL-1 HCl solution at 25 °C has been investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods. The obtained results show that EDPDP is a excellent inhibitor and the inhibition efficiencies exceed 90 %. The polarization measurements reveal that EDPDP is a mixed type inhibitor and the equivalent circuit model of the corrosion inhibition process is obtained by the analysis of EIS data.

Application of Chelating Agents as Cooking Aids in Bamboo Pulping

2013 ◽  
Vol 750-752 ◽  
pp. 1520-1523
Author(s):  
Hong Xia Gao ◽  
Wen Hua He ◽  
Xiu Qiong Guan ◽  
Chun Liu ◽  
Bo Yuan
Keyword(s):  
Phosphonic Acid ◽  
Chelating Agents ◽  
Kraft Pulping ◽  
Kappa Number ◽  
Pulp Yield ◽  
Diethylene Triamine ◽  
Bamboo Pulp ◽  
Kraft Cooking ◽  
Pulp Strength

The effect of chelating agents Diethylene Triamine Penta Methylene Phosphonic Acid in bamboo kraft cooking was studied. The results show that the bamboo pulp yield was 49.52% when DTPMPA dosage is 0.4%, at the same time the Kappa number was lower. With the increasing of DTPMPA dosage in bamboo kraft pulping, the bamboo pulp strength was increased.

Inhibitive Effect of Fatty Amide and Secondary Species on the Corrosion of Carbon Steel

2016 ◽  
Vol 1133 ◽  
pp. 366-370 ◽  
Author(s):  
Izni Mariah Ibrahim ◽  
Junaidah Jai ◽  
Md Amin Hashim
Keyword(s):  
Carbon Steel ◽  
Room Temperature ◽  
Inhibition Efficiency ◽  
Static Condition ◽  
Fatty Amide ◽  
Nacl Solution ◽  
Inhibition Effect ◽  
Linear Polarization Resistance ◽  
Atomic Force ◽  
Polarization Resistance Method

The effect of hydrazine, N2H4 in the presence of fatty amide as corrosion inhibitor on corrosion of carbon steel in 3.5 wt% NaCl solution was studied by linear polarization resistance method (LPRM) at room temperature and static condition. The specimens’ surface analysis was done using atomic force microscope (AFM). The inhibition efficiency improved to more than 80% when 500, 100 and 2000 ppm of hydrazine were added to the inhibited solution containing 20 ppm fatty amide. The results obtained show that the inhibition effect is increased with increase of hydrazine concentration in inhibited solution. It indicates that hydrazine retards the reduction of oxygen in the corrosion process by reacting with dissolved oxygen in the solution and thus, further it reduces the corrosion rate of carbon steel.

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