Matthew
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Production of Potassium Chlorate
I have been reading online that KClO3 can be made by performing electrolysis in a solution of KCl (KCl+3H2O ->
KClO3 + 3H2). I also read that KOH is produced in the same way but with 2KCl + 2H2O = 2KOH+H2. What is the
difference? Do I need to heat the solution in order for it to work?
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Neme
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These equations are wrong.
Electrolysis of KCl gives you Cl2 and KOH (+unimportant H2). These two react with each other to form HCl and KClO. At elevated temperatures, I guess
around 70-80°C, KClO disproportionate back to the default KCl and your wanted KClO3.
If you want KOH just do electrolysis with two separate cells to prevent reacting KOH and chlorine gas.
To be honest I have no experiences in this field, correct me if I'm wrong.
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Matthew
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Thank you. I made some lye recently with the two-chambered electrolysis. The do you know if there is any use for the Cl solution?
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hyfalcon
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bleach
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Meltonium
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Alternatively, you can make KClO3 by boiling bleach down until the NaCl starts to crash out, isolate the liquid layer, and add a saturated solution of
KCl. The KClO3 will precipitate out.
3NaClO -> 2NaCl + NaClO3
NaClO3 + KCl -> KClO3 + NaCl
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Matthew
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I also found this thing about preparing them this way:
here
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Texium
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Thread Moved
3-11-2016 at 06:48 |
woelen
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This may help you: http://woelen.homescience.net/science/chem/exps/miniature_ch...
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MrHomeScientist
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I can vouch for woelen's procedure - I used it to make some when I realized I had no bleach and needed it the next day!
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Matthew
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Does the material that the cathode and anode is made from need to be specific? Won't carbon rods work?
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phlogiston
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Carbon rods will work, but the anode rod will erode and you will get a very suspension of very fine carbon particles in your electrolyte. These are so
small that they are difficult to filter out, yielding a slightly contaminated product. Depending on your application, that may or may not matter.
If you require only a very small amount (a few grams) of chlorate, boiling down bleach is an option. Otherwise, go for electrolysis.
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"If a rocket goes up, who cares where it comes down, that's not my concern said Wernher von Braun" - Tom Lehrer |
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yobbo II
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Read this and yill be grand
http://oxidizing.typhoonguitars.com/
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Matthew
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Strange url but good info. 
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