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2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math


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2346415 No.2346415 [Reply] [Original]

I accidentally mixed 40 lbs of sodium nitrate with 40 lbs of sodium hydroxide. Big mistake. I don't need 80 lbs of drain cleaner....

What's the easiest way to separate them? I'm no damn chemist, but I can follow instructions.

>> No.2346418

How do you accidentally mix 80 lbs of chemicals?

>> No.2346423

Well, I misread them. I thought it was potassium nitrate. The bag was kind of half turned and all I saw was "ium nitrate".

>> No.2346439

you find someone else to blame, assuming this is work related. and start looking for a new job and a lawyer should they want you to pay for it.

so you're dealing with lye and saltpeter. you could probably put the whole thing in water, and the lye will float to the top? or else explode? not a chemist either.

>> No.2346440

>>2346423
You sound like me. This is why you and I should never be chemists. Or bomb disposal people.

>> No.2346442

>>2346439
You stick water in it and it'll become even more mixed.

OP, you're fucked.

Although you might be able to recrystallise them. Look it up, although you'll need to do a lot of experimentation on small amounts of the mixture.

>> No.2346464

NaOH + NaO3 + Water = bad mix I think

>> No.2346467

>>2346423
What were you trying to make?

>> No.2346484

Making steel blue.

>> No.2346494

There's no way I can use this shit to blue steel. This'll probably melt the steel ... or weaken welds maybe I don't know.

>> No.2346499

I'm kind of lucky though, my brother works at a place making roofing adhesives mixing wet chemicals. I'm lucky because I have dry chemicals.

>> No.2346511

>>2346494
A quick google search for steel bluing "sodium nitrate" seems to indicate it's sometimes used. Several other nitrates as well. I don't see why it wouldn't work just as well, unless it's because of having the wrong proportions. It's the nitrate part that reacts with the metal, not the potassium. When you dissolve them in water, the potassium and nitrate ions, and the sodium and hydroxide ions, are separated from each other anyway, as I understand it.

>> No.2346626
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2346626

>>2346494
sodium and potassium are quite related, its safe toassume this shit will also work to blue steel.
might get some solubility problems because of the high sodium concentration (least soluble compound will crystalize out of solution) thats all i can think of. The chemical reactions shouldn't alter dramatically, (neglecting differences in Ionic strength etc...)

>> No.2346682
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2346682

add around 35L of concentrated nitric acid

now it's all NaNO3

>> No.2346697

get yourself some filter paper and a funnel, dissolve the solution, wait until it begins to crystalise and then filter it, repeat....

>> No.2346718

>>2346682
actually this anon is right
NaNO3 + HNO3 --> not much happens except everything dissolves and the solution gets very acidic, some NO2 might escape
NaOH + HNO3 --> NaNO3 + H2O
mind you that this reaction is Extremely exothermi. Adding a neutralising amount of HNO3 all at once will likely result in your painfull death, also you can forget about an open-casket funeral.

>> No.2346735

>>2346682
>Concentrated acid + strong base
This might be a bit exothermic.
Might be a bit safer just to add a group 2 nitrate (ie calcium nitrate)
calcium hydroxide precipitates, which can easily be filtered out.
End up with sodium nitrate solution.

>> No.2346740

>>2346718
In other words, he'll need a slow release mechanism (garden flower pot), a camera and a backyard.

>> No.2346797
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2346797

>>2346735
>practical solutions in my /sci/? it's more likely then you think.