Questions tagged [iron]
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How can steel be so different from iron, even if amount of carbon is small?
Perhaps I am too naive, but I am having a hard time visualizing how even 'high-carbon' iron and steel alloys are maybe, at most, about four percent carbon by mass, which still means only one (smaller) ...
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Can hydrogen peroxide reduce ferric ion to ferrous ion?
I have studied that hydrogen peroxide always oxidizes ferrous ion to ferric ion (source of study : NCERT Chemistry Part II, Textbook for Class XI),
but a question came in IIT JEE 2015 which states:
...
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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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Does Fe(CO)6 really exist?
I was given a question to draw the structure of $\ce{Fe(CO)6}$ and tell the hybridization. Hybridization came out to be $\ce{sp^3d^2}$ and structure as Octahedral. But does $\ce{Fe(CO)6}$ really exist?...
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Where does the energy required to initially begin the reaction of iron and oxygen come from?
When iron is left outside, over time it reacts with oxygen to form iron oxide or rust. But how does the oxygen react with iron, isn't iron held together by strong metallic bonds? Where does this ...
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Redox titration, complex formation effect on lg'K?
We have performed the following redox titration
(1): $\ce{MnO_4^- + 8H^+ + 5Fe^2+ <=> Mn^2+ + 4H_2O + 5Fe^3+}$
where we have used a iron(II)solution (the analyte) and titrated it with a ...
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How can warm steel and wood merge together?
I need to describe the manufacturing of japanese knives. I struggle with the step when the steel blade is put together with the wooden handle.
Here are some pictures from the video https://www.youtube....
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Cationic vacancies created when non-stoichiometric iron oxide is doped with silicon(IV) ions
Problem
It is believed that non-stoichiometric compound $\ce{F_{0.93}O}$ forms by doping of $\ce{Fe^3+}$ ions in $\ce{FeO}$ crystal by replacement of $\ce{Fe^2+}$. Calculate the number of cationic ...
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How can I make a lot of microscopic rods of metal?
I want to make around 40-200 g of metal cylinders that would ideally have a length of around 1-100 μm in size (smaller preferred). The rods will be made of some ferromagnetic material such as Iron or ...
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Trying to understand the chemistry in an iron carbon battery
I am trying to understand the chemistry that occurs in an iron carbon battery during charging.
The negative electrode is iron, the positive electrode is carbon. The electrolyte is iron(II) chloride. ...
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Is aqua-meth-myoglobin (Fe3+) paramagnetic?
Is aqua-meth-myoglobin (Fe3+) paramagnetic? In this case, the iron has all 6 coordination positions occupied by ligands: 4 nitrogen atoms from the pyrrolic rings that compose the porphyrin, 1 ...
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How to get rid of iron phosphate coating on steel after rust convertion
I tried to get rid of some mild rust on a couple of steel elements (cases, screws and whatnot). My intention was to get rid of physical rust by manually scraping it off, perhaps sandblasting and then, ...
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How is there still iron on earth? [closed]
Iron rusts and the earth is pretty old, so how is it that there is still iron left that has not oxidized(/rusted)?
I tried looking it up, and the amount of iron on earth is mind boggling, but is that ...
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What kind of defects can I find in a knife made of high-carbon steel with a wooden handle?
I'm still studying the Japanese knives and must now prevent the different defects that could appear in this tool. I consider a high-carbon steel blade with a wooden handle, with the size of a Sakai ...
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Colour of ferrous hydroxide crystal
My chemistry teacher said that pure $\ce{Fe(OH)2}$ is a "white" crystalline solid in anaerobic environments, and acquires the usual green tinge, the colour of $\ce{Fe(II)}$, when in contact ...
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