Questions tagged [iron]
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Suggestions to mitigate thiothrix and h2s in abandoned geothermal well [closed]
not a chemist, but dealing with an interesting problem here. I have sulfurous ground water entering a storm drain via uncapped geothermal wells, reacting with material in the storm sewer and promoting ...
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Why iron reacts with steam to give Fe3O4 not Fe2O3? [duplicate]
Why $\ce{Fe}$ with $\ce{H2O}$ gives $\ce{Fe3O4}$ not $\ce{Fe2O3}$?
Like, $\ce{Zn + H2O \rightarrow ZnO + H2}$, why $\ce{Fe}$ doesn't simply gives $\ce{Fe2O3}$ when it reacts with steam?
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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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3
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Why do we have to prevent the hydrolysis of iron(III) nitrate?
I want to make particular concentration of ferric ions from $\ce{Fe(NO3)3.9H2O}$, and then I found this video
It says that we have to add nitric acid to prevent iron from hydrolysis, what does it mean?...
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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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Make Yellow rust on cast iron
I am an artist looking for a chemist to collaborate with. I an trying to create Yellow Rust on an old french cast iron fireplace insert.
Aside from vinegar, salt and hydrogen peroxide (that result in ...
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1
answer
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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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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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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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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 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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What other acids can replace hydrochloric acid in the production of galvanized steel?
Galvanized Steel undergoes several processes before being lowered into a molten zinc bath. One is cleaning the steel with "an acidic solution to remove mill scale."
After some more research ...
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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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How heating of iron results in formation of new compound? [closed]
Question:
Which of the following processes results in the formation of the new compound?
A. Dissolving common salt in water
B. Heating water
C. Heating of the platinum rod
D. Heating iron rod
I'...
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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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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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Purifying ferrous sulfate
For my wood staining experiments I have purchased 1 kilo of ferrous sulphate as a source of iron(II). It turned to be quite oxidised (yellowish) and the its solution is muddy yellow instead of green. ...
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Melting stainless steel (or high carbon steel in general) by artisanal techniques (forge welding)?
Here is a new question about the making of Japanese knives (you can find the first two here and here).
According to many sources, the best Japanese knives are made in a traditional way with forge ...
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325
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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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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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Why doesn’t ferrous sulfate appear orange in vinegar?
When I mix ferrous sulfate crystals with water, the solution almost immediately turns orange. However, when I mix ferrous sulfate with vinegar, it doesn’t change colors.
Why is this?
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Separation methods [closed]
I put some iron nails in water, and obviously, those started oxidizing, making those hydrogen bubbles. Some days after, the water was orange, indicated that the FeO has just dissolved in it. I found ...
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Can a plain sheet of stainless steel adhering to the 316 grade be regarded as food safe at every finish level?
My question is not purely about chemistry but it definitely involves it.
I was looking for a while to buy a food-grade stainless steel plate that would fit my home pizza gas oven (to have the dough ...
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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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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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596
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What is a better method when finding the iron content in spinach: Using titration or a spectrometer?
For my chemistry experiment, I want to boil spinach in water for different timings. Using the water that is left after boiling it, I was to determine the amount of iron content in the water solution. ...
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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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How can one change the color of Iron Oxide by changing the composition or hydration?
How does the color of rust change depending on its makeup and state, or more to the point, how would one put the rust into that state?
For example, Wikipedia shows Iron(III) Oxide as being red in the ...
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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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Can someone explain this answer in detail? [closed]
The density of iron is $\pu{7.874 g/cm3}$ and its unit cell volume is $\pu{2.364E-23 cm3}$. These values indicate that there are: two Fe atoms per unit cell and the metal is body-centered cubic.
I am ...
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How to prepare a solution of Ferrous Iron?
I need to prepare a solution of Ferrous Iron (Fe2+). This solution will be used to test a water filtration system by simulating the Ferrous Iron that is sometimes present in well water. The system is ...
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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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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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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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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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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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How to completely remove Iron II Acetate from a steel surface through a chemical reaction?
Is there any suggestion to completely remove iron II acetate from a zinc-alloy steel surface? It can't be something abrasive, or if it is, it must be completely soluble.
Background:
My bike chain, ...
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The rusting of steel may be promoted by brushing with HCl followed by brushing with hydrogen peroxide solution. What is the chemistry involved?
A welder showed me a way of promoting rust on steel by brushing on muriatic acid and then a hydrogen peroxide / water solution. What's going on, chemically speaking?
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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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Water solubility of different types of Iron III
For an experiment I require an aqueous solution of Iron(III). My school has the following compounds, which of them are water soluble? I believe that only Iron(III) oxide is insoluble, but I would like ...
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What happens when FeF3 is reacted with benzene? [closed]
My text book says that halobenzenes can be prepared by aromatic substitution on benzene ring by using Fe or FeX3 as Lewis acid but this method isn't useful for preparation of fluoro benzene because of ...
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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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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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Are those magnetic iron filings in the dirt pure iron?
When I was a kid we used to drag magnets around in the dirt and collect "iron filings". Are they pure iron, or something else?
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Iron and copper oxide for thermite
I recently successfully made thermite from iron oxide powder and aluminum powder. However, I have a couple of questions about copper and iron oxides.
The kind of iron oxide that is made by ...
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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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What is the difference between pig iron and wrought iron? [closed]
I mean, I know the difference in the properties.. but how are they produced? what is the difference in the method of production?
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Rusting of iron is quicker in saline water than in ordinary water [duplicate]
I feel so because, saline water has more more electrons and because of that there will be oxidation will take place faster and hence the overall process will speed up. Is this explanation good enough ...
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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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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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