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JSIR Vol.64(09) [September 2005] >


Title: Study on sodium and potassium salts of polyacrylic acid as corrosion inhibitors
Authors: Mishra, S
Patil, I D
Deore, Dipak
Keywords: Polyacrylic acid
Mild steel
Copper
Sodium
Potassium
Salt deposition
Issue Date: Sep-2005
Publisher: CSIR
IPC CodeD21H21/38
Abstract: The effect of sodium and potassium (20-100 ppm) salts of polyacrylic acid (PAA) was determined on mild steel (MS) and copper (Cu) metals by immersing in Jalgaon ground water for 4-24 h in reflux condition (100 °C) and from 5-30 days in ambient condition. The salt deposition on MS and Cu plates was compared with and without polymer addition in water. The salt deposition on MS and Cu increases with increase in time in hot and cold water without addition of polymer. On addition of polymer, with increase in concentration in water, the salt deposition decreases. In cold water on MS, salt deposition is more than Cu, while in hot water it is vice-versa. With increase in the reflux time (4-24 h), salt deposition on Cu and MS increases up to 6 h of reflux time for all concentrations of K salt of PAA and further it decreases from 12 to 24 h. For Na salt of PAA, deposition increases for the lower concentrations (up to 40 ppm), up to 12 h of reflux time and further the deposition decreases for both MS and Cu. At higher concentrations (100 ppm), Na salt of PAA in water is more effective than K salt as the deposition becomes negligible on Cu.
Page(s): 684-687
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Source:JSIR Vol.64(09) [September 2005]

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