The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 139756-21-1, Name is 5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one, SMILES is O=C1C(N(C)N=C2CCC)=C2N=C(C3=CC=CC=C3OCC)N1, in an article , author is Jiang, Zhineng, once mentioned of 139756-21-1, SDS of cas: 139756-21-1.
Purine derivatives as high efficient eco-friendly inhibitors for the corrosion of mild steel in acidic medium: Experimental and theoretical calculations
From the viewpoint of environmental protection and sustainable development, applying green inhibitors to inhibit the metal corrosion in industry is of great concern. In this work, two purine derivatives, 6-Furfurylaminopurine (FAP) and N-Benzoylaminopurine (N-BAP), were evaluated as eco-friendly corrosion inhibitors for mild steel (MS) in 1 M HCl solution by experimental and theoretical approaches. Electrochemical measurements indicate that both FAP and N-BAP present high inhibition performance, especially for N-BAP with a high inhibition efficiency of 97.0% and high stability of inhibition performance with the inhibition efficiency of 98.6% after 24 h immersion. Theoretical calculations were performed to elucidate the adsorption mechanism of FAP and N-BAP on MS surface. The adsorption of FAP is through the bonding of two N atoms of purine ring on the Fe surface, while for N-BAP molecule, besides the two N atoms in purine ring, its adsorption is also through the bonding of the O of carbonyl on the Fe surface. The diffusion behavior of corrosive species by molecular dynamics simulations indicates that the adsorbed FAP and N-BAP films can effectively prevent the diffusion of corrosive species from corrosive solution to MS surface, thereby inhibiting the corrosion of MS. (C) 2020 Published by Elsevier B.V.
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Reference:
Pyrimidine | C4H4N2 – PubChem,
,Pyrimidine – Wikipedia