Copper Corrosion Inhibitors. A review

Nov 20, 2007 - dependent on the structure and chemical properties of the species formed under the specific ... The synthesized triazo phosphonates are...

3 downloads 0 Views 239KB Size

Recommend Documents

Introduction. Acid treatments have been applied to wells in oil and gas bearing rock formations for many years. Acidizing is probably the most widely used work-over and stimulation practice in the oil industry. By dissolving acid soluble components w

described in ASTM G-5-93 standard. A computer-controlled potentiostat (Model Solartron ECI-1286) and a frequency response analyzer (Solartron .... surface. By using Faraday's law, the Cu thickness reduction rate was calculated as: δ = (∆m ⋅ 3600

23]. GokhanGece (2011) review from literatures the use of many types of drugs as corrosion inhibitors of various metals. [24]. Some drugs (such as ampicillin, ...

Passivating inhibitors cause a large anodic shift of the corrosion poten- tial, forcing the metallic surface into the ... such as phosphate, tungstate, and molybdate, that require the presence of oxygen to passivate steel. .... in metal-cleaning proc

their protonated forms in an electrical double layer were evaluated by density ... media.1–10 As corrosion inhibitors, various substances, both inorganic and orga ...

inhibitors; as the passivating inorganic inhibitors may be dangerous in acid environments and cause severe localized attack once the passive film get broken. This section describes recently patented acid corrosion inhibitors for applications such as

Corrosion is controlled by anodic (passivating) inhibitors including nitrate and chromate as well as by cathodic (e.g., zinc salt) inhibitors. Organic inhibitors (e.g., benzotriazole) are sometimes used as secondary inhibitors, especially when excess

Natalya V. Likhanova. Additional information is available at the end of the chapter http://dx.doi.org/10.5772/57252. 1. Introduction. In most industries whose facilities are constituted by metallic structures, the phenomenon of corrosion is invariabl

Keywords: Copper, marine atmospheric corrosion, seawater corrosion. 1. .... also above the free water surface, in the atmospheric one [17,. 18], with the purpose ...

resistance, corrosion inhibition, organic amines, marine environment, diffusion, migration ... This design allows variability in the type of concrete membrane, i.e., ...

ability to form a thin, passivating film directly on the anodic portion of metal. Besides chromates and phosphates (or their combina- tions) silicates, nitrites and .... diethylamine, acridine, acriflavin, etc. These materials are used for combating

acetate dihydrate (Cu4(OH)(CH3COO)7 ·2H2O), for acetic acid. C. 2001 Kluwer Academic ... Taking into account Equations 1, 2 and 3, it is possible to write. C. 45.37M ... position (mass %): 0.015 Pb, 0.009 Sn,

At sufficiently high sulphide flux, microgalvanic corrosion can be supported between areas ... tems, to a non-uniform growth of the corrosion film which could.

the performance of carbon dioxide corrosion inhibitors for oilfield pipelines in the West .... corrosion. The corrosion rate increased nearly 7-fold for both types of ...

organic and inorganic corrosion inhibitors to the environment has provoked the search .... Polarization studies indicated that inhibitors are acted as mixed type.

A New Class of Urease Inhibitor—Biscoumarin. Recently a new class of urease inhibitor, biscoumarin was reported by Khan et al56. Biscoumarin are naturally ...

Jul 26, 2014 - Structure Under Simulated Field Service Environment. L. Shi, J. Ye ... To guide the scientific applications of organic corrosion inhibitors, China is carrying .... carbon steel were used in this study. ..... reinforcement rust efficien

Sep 30, 2012 - Ferreira et al., in 1965 reported teprotide (7) which is isolated from venom peptide of Pit viper (Bothrops jaraca) 39 has the best duration of ACE ...

Dec 31, 2013 - in the phase change process, water is considered to be a suitable cooling fluid, so long as issues ..... a sweep rate of 0.06 mV/s from the open circuit potential in both anodic and cathodic directions. ...... cal Engineering Design of

Keywords: Copper, NaCl, HCl, impedance (EIS), corrosion. 1. INTRODUCTION ..... 4-triazole on the inhibition of copper corrosion in acidic chloride solutions.

Oct 21, 2009 - IChTM Department of Electrochemistry IRM, Mining and Metallurgy .... impedance spectroscopy", Journal of Applied Electrochemistry, Vol 36, ...

It is for this reason that aluminium bronze tubeplates are used in condensers with titanium tubes. 2 Types of Aluminium Bronze ..... single phase alloys such as CA106 ( "Alloy D ") in high pressure steam service. Research in USA showed that ..... in

Phosphoric acid is obtained by wet process: phosphate rocks are attacked by sulfuric acid. ... Copper is used widely in industry, because of his good thermal conductivity and mechanical properties. Copper .... Table (4) gives the gravimetric paramete

of acetic acid, the OCP shifted to the most noble potential values with ..... electrolyte probably due to the increase in conductivity of the solution mixture in the.