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Topic: Aqua regia  (Read 3189 times)

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Offline mokhakram

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Aqua regia
« on: January 08, 2015, 06:06:13 AM »
please i have nitric acid 69% and HCL 30to34% how can i use them to ge aqua regia
in order to solve gold

Offline mjc123

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Re: Aqua regia
« Reply #1 on: January 08, 2015, 06:50:30 AM »
Very carefully!
Mix the two acids in the volume ratio 3 HCl: 1 HNO3. Do this in a fume cupboard because it generates NO2.

Offline mokhakram

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Re: Aqua regia
« Reply #2 on: January 09, 2015, 03:25:42 PM »
what about the diffrent in concentration  HCL 30% AND HNO3 69%

Offline mjc123

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Re: Aqua regia
« Reply #3 on: January 09, 2015, 06:17:06 PM »
Use those solutions. 3 vols 30% HCl to 1 vol 69% HNO3.

Offline mokhakram

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Re: Aqua regia
« Reply #4 on: January 18, 2015, 06:54:03 AM »
please how many grams of gold can be dissolved in one liter of aqua regia

Offline Arkcon

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Re: Aqua regia
« Reply #5 on: January 18, 2015, 08:25:08 AM »
If you can write a balanced chemical equation for the reaction, you can come up with a ballpark value.  I guarantee you that the cost of mililiters of mixed acids is way, way, waaaayyyy less than the cost of grams of gold.  So this isn't really, an import question to ponder, if you think about it.
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline billnotgatez

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Re: Aqua regia
« Reply #6 on: January 18, 2015, 12:19:02 PM »
From WIKI
http://en.wikipedia.org/wiki/Aqua_regia
Quote
aqua regia is itself very corrosive and has been implicated in several explosions due to mishandling

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