The corrosion of Fe and Ag in S liquid at lowtemperature. Effect of S viscosity

The kinetics of the anodic formation and reduction of phase silver sulfide films on silver in aqueous sulfide solutions

“…The potential applied to the electrode, £, can be distributed across the elements of the circuit as £ = V+lR s + b<p (12) where Kis the potential across the film, IR S represents the ohmic loss due to the electrolyte and Ac/) is the sum of the potentials across the interfaces, such as at the Ag Ag 2 S interface and at the Ag 2 S electrolyte interface.…”

“…10), the electrolyte resistance, IR" is also constant. As Ac/ > is also assumed to remain constant, the differentiation of equation (12) with respect to time yields d£ dl d; ~ ~~At (13) film growth, it can be assumed that only further film thickening occurs and therefore, the Faraday law can be expressed as…”

“…Much work has also been done with regard to the corrosion reaction between silver and sulfur or hydrogen sulfide at temperatures above room temperalure to form both a-and /?-Ag 2 S [10][11][12][13][14][15][16]. It appears •hat the reaction kinetics are initially linear being governed by the rate of the reaction at the Ag/Ag 2 S mterface, but then become parabolic as diffusion through the thickening Ag 2 S layer becomes rate limiting.…”

Jet Fuel Deposition and Oxidation: Dilution, Materials, Oxygen, and Temperature Effects

“…At present it is thought that formation of carbon deposits in the presence of oxygen may explain the lesser formation of deposits. It is believed that the formation of silver sulfide tarnish on silver surfaces occurs by the reaction of sulfur with the surface silver atoms, and subsequent migration of subsurface silver atoms to the surface (Ricciardiello and Riotti, 1972). We hypothesize that the deposition of carbonaceous fuel deposits may cover the surface enough to limit the reaction of sulfur with silver, thus explaining the lower deposition in the presence of oxygen.…”

Influence of Electrostatic Field on Mixed Aqueous Solution of Calcium and Ferrous Ions: Insights from Molecular Dynamics Simulations

“…Generally, the formation of calcium carbonate precipitation involves three stages: nucleation, grain growth, and aggregation of CaCO 3 crystals [38]. The viscosity of the solution affects the precipitation of calcium carbonate and the corrosion behavior of iron in the solution [39][40][41][42][43]. According to experimental findings, the crystallinity of scale-forming ions mixed with water is inversely related to the viscosity of a liquid [44].…”