20.500.12556/DKUM-27472 Inhibitory effect of non-ionic surfactants of the TRITON-X series on the corrosion of carbon steel in sulphuric acid The corrosion inhibition characteristics of non-ionic surfactants of the TRITON-X series, known as TRITON-X-100 and TRITON-X-405, on stainless steel (SS) type X4Cr13 in sulphuric acid were investigated by potentiodynamic polarisation measurements. It was found that these surfactants act as good inhibitors of the corrosion of stainless steel in 2 mol L-1 H2SO4 solution, but the inhibition efficiency strongly depends on the electrode potential. Thepolarisation data showed that the non-ionic surfactants used in this study acted as mixed-type inhibitors and adsorb on the stainless steel surface, in agreement with the Flory-Huggins adsorption isotherm. Calculated Gads values are -57.79 kJ mol-1 for TRITON-X-100, and -87.5 kJ mol-1 for TRITON-X-405. From the molecular structure it can be supposed that these surfactants adsorb on the metal surface through two lone pairs of electrons on the oxygen atoms of the hydrophilic head group, suggesting a chemisorption mechanism. electrochemistry corrosion inhibitors non-ionic surfactants Flory-Huggins isotherm critical micelle concentration sulphuric acid elektrokemija korozijski inhibitorji neionske površinsko aktivne snovi Flory-Hugginsova izoterma kritična micelna koncentracija korozijski kinetični parametri žveplova (VI) kislina true false false Angleški jezik Angleški jezik Neznano 2012-06-01 11:19:15 2012-06-01 11:19:15 2022-04-15 03:44:56 2019-07-10 12:17:41 2007 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 541.183:620.1 11144726 0013-4686 URN:SI:UM:DK:NO43OUAA http://dx.doi.org/doi:10.1016/j.electacta.2007.01.075 1 https://dk.um.si/Dokument.php?lang=slv&id=36772 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0