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There are several tests for sulfate ion to identify from other anions in qualitative analysis. Some of metal sulfate compounds are soluble in water and some metal sulfates form precipitates. Sulfate compounds of several d block metal cations form colours.
11 Οκτ 2015 · In the first equation, $\ce{Fe}$ is oxidised to $\ce{Fe^2+}$ by $\ce{H+}$; the $\ce{SO4^2-}$ ions play no role in the reaction. You could replace $\ce{H2SO4}$ with $\ce{HCl}$ and get the same reaction.
11 Φεβ 2020 · In this paper, the electrochemical behavior of carbon steel in the presence of Fe 2+ or Fe 3+ concentration in Cl − and SO 42− aqueous environments have been investigated using conventional electrochemical methods such as linear polarization and alternating current impedance spectroscopy.
1 Ιουν 2022 · The increase in corrosion current density caused by cations and anions corresponds to the following orders (greater to lesser influence): NH4+ > Ca2+ > Mg2+ and HCO3− > Cl− > SO42−. Composition...
Sulfate-based electrolytes: Typically used for plating metals like copper and nickel, sulfate electrolytes are popular due to their stability and the high quality of plating they can achieve. 3. Chloride-based electrolytes: Often used for metals like tin and zinc, chloride electrolytes are appreciated for their ability to promote fast ...
15 Αυγ 2023 · The electrochemical testing and material characterization of galvanized steel in alkaline sulfate solutions showed that the sulfate ions can adversely affect the barrier protection provided by the surface layers and promote prolonged corrosion activity.
30 Ιουν 2021 · The early presence of sulfate ions in a saturated calcium hydroxide solution was shown to affect the corrosion behavior of the steel. The higher sulfate ion concentrations resulted in the increase of the anodic current exchange density.
