Questions tagged [corrosion]
For questions about the process of corrosion or protection of metals from corrosion.
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Does concentration of salt increase or decrease rate of rusting?
I want to know whether increasing the concentration of salt, specifically $\ce{NaCl}$, increases or decreases the rate of rusting. There are conflicting theories that explain opposite outcomes:
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Can hydrofluoric acid etch glass at a pH of 7.0?
Will it still etch glass when very dilute? Will the reaction still proceed slowly? At what pH will the reaction stop completely?
From Wikipedia on hydrogen fluoride: "Although hydrofluoric acid ...
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How do metals split the oxygen double bond during corrosion?
For a metal like $\ce{Mg}$ to corrode into $\ce{MgO}$, the double bond in $\ce{O2}$ must break. Since the dissociation energy of $\ce{O2}$ is 500 kJ/mol, using estimates from the Boltzmann ...
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Why is aluminum oxide resistant to corrosion?
It is common knowledge that aluminum is relatively resistant to corrosion due to its tough oxide layer. The ultrathin (1 nm even) layer is impervious to water and oxygen. What I can't figure out is, ...
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Will aluminum continue to corrode after its surface is oxidized?
After doing some reading, it is common to read that aluminum is corroded by oxygen, but that the thin layer of aluminum oxide protects the internal metal from further damage. How much does this layer ...
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