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Author: Subject: KCL from KNO3
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[*] posted on 24-5-2015 at 14:03
KCL from KNO3


Can KCL be made from KNO3 ? (Use KNO3 for K source to make KCL)
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aga
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[*] posted on 24-5-2015 at 14:05


Yaes, it can.

Why on earth you would want to is a mystery.




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blogfast25
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[*] posted on 24-5-2015 at 14:29


KCL doesn't exist.

KCl does.




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Ramium
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[*] posted on 24-5-2015 at 14:36


KNO3 + HCl = HNO3 + KCl ?

maybe
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blogfast25
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[*] posted on 24-5-2015 at 14:39


Quote: Originally posted by Ramium  
KNO3 + HCl = HNO3 + KCl ?

maybe


That's not a chemical reaction. You obtain a solution containing H3O+ ions, K+ ions, nitrate ions and chloride ions. On chilling KCl might crystallise out but you'd have to check the solubility limits first.




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papaya
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[*] posted on 24-5-2015 at 14:46


Quote: Originally posted by blogfast25  
Quote: Originally posted by Ramium  
KNO3 + HCl = HNO3 + KCl ?

maybe


That's not a chemical reaction. You obtain a solution containing H3O+ ions, K+ ions, nitrate ions and chloride ions. On chilling KCl might crystallise out but you'd have to check the solubility limits first.


This will work, since HNO3 will react on heating with excess HCL to form NOCl gas which escapes, at the end you will have KCl and HCl only. A pointless thing to do, btw..
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[*] posted on 24-5-2015 at 14:53


Quote: Originally posted by papaya  

This will work, since HNO3 will react on heating with excess HCL to form NOCl gas which escapes, at the end you will have KCl and HCl only. A pointless thing to do, btw..


I doubt that would work as well as you imagine.

The equilibrium for HCl + HNO3 === > NOCl lies much to the left. And HCl is volatile too.




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[*] posted on 24-5-2015 at 14:57


At least I've heard that gold recovery people use excess HCl to "neutralize" remaining HNO3 from aqua regia, I think more or less it works.
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[*] posted on 24-5-2015 at 15:06


Quote: Originally posted by papaya  
At least I've heard that gold recovery people use excess HCl to "neutralize" remaining HNO3 from aqua regia, I think more or less it works.


They must be some d*mb f*cks. You need Aqua Regia for gold anyway. Excess HNO3 is usually neutralised with urea, among the 'gold diggers'.

[Edited on 24-5-2015 by blogfast25]




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[*] posted on 24-5-2015 at 15:06


Quote: Originally posted by blogfast25  
Quote: Originally posted by papaya  

This will work, since HNO3 will react on heating with excess HCL to form NOCl gas which escapes, at the end you will have KCl and HCl only. A pointless thing to do, btw..


I doubt that would work as well as you imagine.

The equilibrium for HCl + HNO3 === > NOCl lies much to the left. And HCl is volatile too.

They have vastly different boiling points though. Ensure that there is enough water present to form azeotropic HCl, and reflux the mixture using cold water in the condenser. NOCl won't condense, but the acids will. That should drive the equilibrium to favor the destruction of HNO3

[Edited on 5-24-2015 by gdflp]




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[*] posted on 24-5-2015 at 15:09


Quote: Originally posted by gdflp  

They have vastly different boiling points though. Ensure that there is enough water present to form azeotropic HCl, and reflux the mixture using cold water in the condenser. NOCl won't condense, but the acids will. That should drive the equilibrium to favor the destruction of HNO3



But you don't think that would be a pretty dumb way of doing it? Nice, massive fumes of NOCl, yum yum! :o




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[*] posted on 24-5-2015 at 15:40


Quote: Originally posted by blogfast25  
Quote: Originally posted by papaya  
At least I've heard that gold recovery people use excess HCl to "neutralize" remaining HNO3 from aqua regia, I think more or less it works.


They must be some d*mb f*cks. You need Aqua Regia for gold anyway. Excess HNO3 is usually neutralised with urea, among the 'gold diggers'.

[Edited on 24-5-2015 by blogfast25]


A dumb fuck called nurdrage calls for something similar while purifying crude chloroplatinic acid in this video: www.youtube.com/watch?v=MlMj3VEYBMA
But I'm not going to argue more..
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[*] posted on 24-5-2015 at 16:04


Quote: Originally posted by papaya  


A dumb fuck called nurdrage calls for something similar while purifying crude chloroplatinic acid in this video: www.youtube.com/watch?v=MlMj3VEYBMA
But I'm not going to argue more..


False analogy alert. The gold diggers aren't looking to produce chloroauric acid.

And converting KNO3 to KCl the way you propose is a dumb waste of nitrate, especially seeing how easy KCl is to obtain or even prepare. I hate these idiotic DIY schemes.




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[*] posted on 24-5-2015 at 16:13


Quote: Originally posted by blogfast25  
Quote: Originally posted by papaya  


A dumb fuck called nurdrage calls for something similar while purifying crude chloroplatinic acid in this video: www.youtube.com/watch?v=MlMj3VEYBMA
But I'm not going to argue more..


False analogy alert. The gold diggers aren't looking to produce chloroauric acid.

And converting KNO3 to KCl the way you propose is a dumb waste of nitrate, especially seeing how easy KCl is to obtain or even prepare. I hate these idiotic DIY schemes.


I never proposed this method myself, I even called it pointless, I however said, that this is theoretically possible (contrary to what you initially said).
Blogfast, I won, give up and don't be angry :P
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[*] posted on 24-5-2015 at 16:24


It is posible but is waste of chemicals.

In my country dietetic table salt ( 66% ClK,33% ClNa) is posible obtain ClK with repeated cristalisations.
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[*] posted on 24-5-2015 at 16:26


Quote: Originally posted by papaya  

Blogfast, I won, give up and don't be angry :P


I never, never give up. My momma told me not to!




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[*] posted on 24-5-2015 at 16:29


Quote: Originally posted by blogfast25  
Quote: Originally posted by papaya  

Blogfast, I won, give up and don't be angry :P


I never, never give up. My momma told me not to!


Yes, me too! Interestingly the author never appeared again to tell us why he needs to convert more useful (at least I think so) nitrate salt to the cheap chloride.
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[*] posted on 24-5-2015 at 17:01


Quote: Originally posted by papaya  
Quote: Originally posted by blogfast25  
Quote: Originally posted by papaya  

Blogfast, I won, give up and don't be angry :P


I never, never give up. My momma told me not to!


Yes, me too! Interestingly the author never appeared again to tell us why he needs to convert more useful (at least I think so) nitrate salt to the cheap chloride.


My bet: the OP will NEVAH do that. That's how most of these 'How can I make sodium carbonate from BBQ coals an' sh*t, also, too' threads nearly always end up. I should avoid them like the plague. I only wanted to correct a spelling error (boohoohoo... hoohoo)




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