Questions tagged [corrosion]
For questions about the process of corrosion or protection of metals from corrosion.
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NiCr wire and water
Suppose I'm a very impatient person and I want to heat up water by getting rid of the layer of isolation between a NiCr wire and the water (e.g. skinny-dipping). The idea is that, since the wires can ...
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Is hydrochloric acid or sulfuric acid more corrosive to titanium?
Which acid is more corrosive to titanium at 20 to 30 °C and similar concentrations: hydrochloric acid $\ce{HCl}$ or sulfuric acid $\ce{H2SO4}$?
I found some info on AZoMaterials — Titanium - Corrosion ...
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Corrosiveness of Deionized vs Distilled water for use in Laboratory Water Bath [duplicate]
I've read conflicting descriptions of the corrosiveness (or lack thereof) of very pure water. For a precision water bath, it's stated that one should fill the bath with distilled water rather than ...
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Calculating pourbaix diagram of Fe-H2O system at different temperatures
I have been trying to calculate the pourbaix diagram for Fe-H2O at different temperature for my high school research but I am facing a lot of problems. I have several question regarding the ...
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Best material selection for a component containing hot saturated-level saline water with high chloride content (Polymer vs coated metal)
I have a component (Which can be seen as the attached file)
and inside the component, there would be hot saturated-level saline water with high chloride content (Not shown)
Considerations:
The ...
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Does iron rust because of impurities found in it (ex. carbon)?
If we, theoretically, get a piece of ideally 100% pure iron and it is left in moist air? Will it rust? My understanding of iron rust is that the Iron itself becomes the ANODE and carbon impurities (as ...
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Do I need to 'neutralise' iron/steel/metal with a base after removing rust with acid?
I've never asked a question here before but these forums seem to have some extremely knowledgeable people so I thought I'd give it a try. I know it's a 1st grade question but I honestly don't have the ...
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When we are looking for volts vs SHE, is it that the potential of the element is compared to hydrogen potential?
I'm new to understanding this aspect of electrochemistry and only just now refreshing my memory of high school chemistry for a specific purpose. If I've worded the question or anything else ...
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Will strong base corrode aluminium in absence of oxygen? [closed]
From what i understand, putting iron in a vacuum chamber (airtight container) will stops further oxidation take place.
However in aluminium, with only oxygen, aluminium will form thin oxide film that ...
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Is it possible to electrochemically remove the aluminum fouling a steel file?
I have a number of metal files that, to my regret, I have used on aluminum which gets stuck to the teeth. As suggested on several mechanics forums, I have tried soaking the files in concentrated ...
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Why did these magnetic ball bearings corrode?
Before the pandemic, I bought a set of magnetic ball bearings (a few mm in diameter) and attached them to a side panel of my desk (presumably, the panel is iron coated in grey paint).
On returning to ...
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Galvanic corrosion in heating system [closed]
I’m a training heating engineer and have am unsure on hydrogen build-up in heating systems. I understand that any free air and the water within a heating system will react with the iron content in ...
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Corrosive potential of molten ionic salt
I was looking at this video about fourth generation of nuclear reactors and one of developing concepts is molten salt reactor (MSR) where melted ionic salt replaces water as coolant and also acts as a ...
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Does 99.8% acetic acid cause severe skin burns like formic acid?
I've so far handled only concentrated fuming nitric, sulfuric & hydrochloric acids from the inorganic side. Even during an accidental spill on the hand I did say only the $\ce{HNO3}$ affects the ...
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Corrosion rate of aluminium
In which conditions the corrosion rate of aluminium is faster?
a) acidic conditions
b) neutral
c) alkaline conditions
I know that corrosion can be in a and c cases but I dont know when it'll be faster....
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