Author/Authors :
Verma، Chandra Bhan نويسنده Department of Chemistry, Indian Institute of Technology, Banaras Hindu University, Varanasi 221005, India Verma, Chandra Bhan , Reddy، Mareddy Jayanth نويسنده Department of Metallurgical Engineering, Indian Institute of Technology, Banaras Hindu University, Varanasi 221005. India Reddy, Mareddy Jayanth , Quraishi، Mumtaz Ahmad نويسنده Department of Chemistry, Indian Institute of Technology, Banaras Hindu University, Varanasi 221005, India Quraishi, Mumtaz Ahmad
Abstract :
In the present investigation we have synthesized four chalcones namely 3-(4-
chlorophenyl)-1-(2, 4-dihydroxyphenyl) prop-2-en-1-one (CHAL-1), 1-(2, 4-
dihydroxyphenyl)-3-p-tolylprop-2-en-1-one (CHAL-2) 1-(2, 4-dihydroxyphenyl)-3-(2-
hydroxyphenyl) prop-2-en-1-one (CHAL-3) and 1-(2, 4-dihydroxyphenyl)-3-(4-hydroxy-3-
methoxyphenyl) prop-2-en-1-one (CHAL-4) and premeditated their corrosion inhibition
property on mild steel (MS) in 1M HCl using chemical and electrochemical methods. The
scanning electron microscopic (SEM) study reveals the formation of protective film of
chalcones on MS surface. Presence of elements on MS surface was also studied using high
energy dispersive (EDX) technique. Potentiodynamic polarization study reveals that
chalcones are of mixed type inhibitors. Weight –loss experiment also performed at different
temperature in order to derive thermodynamic parameters and to explain mechanism of
adsorption
