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Topic: Does Conc. Hydrochloric Acid get oxidised by KNO3  (Read 7417 times)

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Offline mewrox99

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Does Conc. Hydrochloric Acid get oxidised by KNO3
« on: March 20, 2010, 01:41:09 AM »
My guess is no. But does my hypothetical reaction

12 HCl + 2 KNO3  :rarrow:2 KCl + 6 H2O + 5 Cl2 + N2

Ever actually take place. I know that hypochlorites and permanganate can oxidize hcl
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Offline Schrödinger

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Re: Does Conc. Hydrochloric Acid get oxidised by KNO3
« Reply #1 on: March 20, 2010, 05:17:31 AM »
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Offline Borek

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Re: Does Conc. Hydrochloric Acid get oxidised by KNO3
« Reply #2 on: March 20, 2010, 05:40:38 AM »
Or google Aqua Regia.
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Offline Schrödinger

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Re: Does Conc. Hydrochloric Acid get oxidised by KNO3
« Reply #3 on: March 20, 2010, 11:14:36 AM »
I'm extremely sorry. I misread the topic as : HNO3.

Anyway, it does react, and as Borek rightly pointed out, is it used to make aqua regia
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Offline BluRay

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Re: Does Conc. Hydrochloric Acid get oxidised by KNO3
« Reply #4 on: March 20, 2010, 11:24:59 AM »
Quote from: Schrödinger on March 20, 2010, 11:14:36 AM
I'm extremely sorry. I misread the topic as : HNO3.

Anyway, it does react, and as Borek rightly pointed out, is it used to make aqua regia
Infact, it's exactly the same, since you use HCl: in solution you have the same ions.
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Offline mewrox99

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Re: Does Conc. Hydrochloric Acid get oxidised by KNO3
« Reply #5 on: March 21, 2010, 01:51:53 AM »
Oh that's right I forgot that Conc. HCl acid + KNO3 is practically the same as nitric acid. Since Nitric acid is just H3O+ and NO3- flouting around in solution so when the mixture decomposes it's

KNO3 + 4 HCl  :rarrow: KCl + NOCl + Cl2 + 2 H2O
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Offline Borek

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Re: Does Conc. Hydrochloric Acid get oxidised by KNO3
« Reply #6 on: March 21, 2010, 05:41:43 AM »
It is not exactly the same, it is less acidic. But chemistry of the solution will be very similar.
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Offline Schrödinger

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Re: Does Conc. Hydrochloric Acid get oxidised by KNO3
« Reply #7 on: March 21, 2010, 06:00:43 AM »
Quote from: mewrox99 on March 21, 2010, 01:51:53 AM
Since Nitric acid is just H3O+ and NO3- flouting around in solution
funny typo :D ;)
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