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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Forcing a steel pipe to rust completely
I understand rust. Fe + H20 → OH- → Fe(OH)2 or 3 and/or FenOm
I understand rust prevention and steels that are resistant to rusting. Trying to google this question gives thousands of answers on ...
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Reaction between iron oxide and metallic zinc or aluminum at 500C
High temperature corrosion of iron occurs on passenger automobiles in areas such as exhaust headers, pipes and bolts that reach temperatures of about 500°C. The iron is in the form of steel or ...
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Can a diamond dissolve in molten iron?
The melting point of diamond is 4000C and the melting point of iron is 1538C. However, the question is if a diamond is soluble in an iron solvent. Diamond is made up of carbons. And I know steel is ...
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Is there any method to make sure a electroplated layer of iron oxidizes into magnetite (Fe3O4) instead of hematite (Fe2O3)?
I am currently electroplating iron on copper using a DIY setup in my lab. Steel sheet as anode with electrolyte having 5% acetic acid with sodium carbonate to form sodium acetate and added some NaCl ...
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Source(s) of extreme Raman scattering of FeOOH under intense laser excitation?
RRUFF's Raman spectrum of FeO(OH) as Goethite:
Bears no apparent similarity to the extreme Raman scattering of this sample of purported FeOOH under 785nm laser excitation with 100x objective that ...
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Which is a better poison to the Haber's process, $\ce{CO}$ or $\ce{H2S}$? [closed]
I am studying about catalysts and their promoters and poisons and came across two of the possible poisons for Fe used during Haber's process and wanted to compare their effect on the rates of reaction....
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Easiest/Fastest way to obtain a good quantity of fine Iron powder? [closed]
I am wanting to make a reasonable quantity (10-100g) of iron powder that I can use to visualise magnetic fields (by putting the powder in a thin layer between two transparent materials).
The finer the ...
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Oven safe dessiccant?
Im sure there is a chemist/lab tech that knows a simple solution to my problem, as I cant seem to find a solution. When trying to strip and re-season cast iron cookware, I occasionally have problems ...
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How can I have iron powder without a fast reaction with oxygen? [closed]
I've seen this video in which fine iron powder reacts immediately with oxygen when exposed to the air, turning into rust.
Now, will this reaction always occur with iron powder? Or is there something ...
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What is the effect of H2O2 on SPIONs?
I have a system contains super paramagnetic iron oxide nanoparticles (SPIONs) either Fe3+ or Fe2+. I need to introduce hydrogen peroxide to the system but i am not sure about its effect to the SPIONs ...
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When Iron reacts with any other species, how will we know that the reaction will be of Fe(II) or Fe(III) i.e. of ferrous or ferric? [closed]
Like when iron reacts with water there forms iron oxide and hydrogen but how'll we come to know which of three equation will be right equation for reaction?
$$\ce{Fe + H2O → FeO + H2}$$
$$\ce{2Fe + ...
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Methods to detect iron in highly concentrated ferric sulphate solutions
I’m writing with a query related to reagents used to detect iron in highly concentrated ferric sulphate solutions.
I am currently exploring iron detection in both solutions of ferrous $\ce{(Fe^2+)}$ ...
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The use of "splitting" in 17th century ironmaking?
I'm reading a book about spycraft in the 1650s. At that time Sweden was taking over the iron industry so England sent a spy to learn the new technique.
The technique is called "splitting" ...
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Specifically how does the presence of moisture and oxygen affect the yield of ferrocene? [closed]
In a lab this week at uni we made ferrocene (I'm a second year Chemistry student). This was done by reacting nBuLi with cyclopentadiene (kept in freezer) to create the Cp anion in-situ.
To this ...
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Equilvalence point in redox Titration of Fe(II) and Fe(III) with Reinhardt-Zimmermann solution
In the lab at university, we need to conduct a simultaneous determination of iron(II) and iron (III) ions using potassium permanganate solution.
In the first step, we just fill up our given sample ...
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