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Evaluation of acridine, p-amino benzaldehyde and diethanol amine as corrosion inhibitors for carbon steel in citric acid

IR@NISCAIR: CSIR-NISCAIR, New Delhi - ONLINE PERIODICALS REPOSITORY (NOPR)

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Field Value
 
Creator Das, Chintamani
 
Date 2015-03-20T10:52:19Z
2015-03-20T10:52:19Z
1996-09
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://hdl.handle.net/123456789/31038
 
Description 259-262
<span style="font-size:11.0pt;line-height:115%; font-family:" calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-fareast-font-family:="" "dejavu="" sans";mso-hansi-theme-font:minor-latin;mso-bidi-font-family:"times="" new="" roman";="" color:#00000a;mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:="" ar-sa"="">Acridine, <i>p</i>-amino benzaldehyde and diethanol amine have been shown to exhibit increasing inhibition efficiencies with concentration of the respective inhibitors. The temperature coefficient of inhibition was found to be negative for all the three inhibitors and the activation energy for the process in-creased on addition of inhibitors. All these compounds follow both Langmuir and Freundlich adsorption isotherms. The heat of adsorption obtained by Langmuir equation indicated the adsorption to be of physical in nature. The negative free energy and the entropy of adsorption were higher for acridine and <i>p</i>-amino benzaldehyde than that for diethanol· amine which explained the better performance shown by acridine and <i>p</i>-amino benzaldehyde in protecting carbon steel in citric acid in comparison to that of diethanol amine.</span>
 
Language en_US
 
Publisher NISCAIR-CSIR, India
 
Rights <img src='http://nopr.niscair.res.in/image/cc-license-sml.png'> <a href='http://creativecommons.org/licenses/by-nc-nd/2.5/in' target='_blank'>CC Attribution-Noncommercial-No Derivative Works 2.5 India</a>
 
Source IJCT Vol.03(5) [September 1996]
 
Title Evaluation of acridine, p-amino benzaldehyde and diethanol amine as corrosion inhibitors for carbon steel in citric acid
 
Type Article