Kagutsuchi
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Preparation of calcium chlorate with chlorine gas and Ca(OH)2.
My question would be the following: Did anyone try making calcium chlorate bubbling Cl2 gas through water that contained Ca(OH)2? I would not say a
Ca(OH)2 solution for known reasons but it should work with solid hydroxide on the bottom as well.
If anyone has done it this way, I would be happy to be told about their experiences with the process.
Also, I'd like to know if Ca(ClO3)2 could be used in flash powders like KClO3 or it has to be made into KClO3 first.
Thanks in advance for the replies 
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hyfalcon
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Not good in pyro mixtures. Very hygroscopic.
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blargish
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I would anticipate that you would have trouble with efficiently separating the calcium chlorate from the calcium chloride also produced in the
reaction. However, if your desired end goal is potassium chlorate, you could add potassium chloride to the mix and be able to isolate and crystallize
out the sufficiently less soluble potassium chlorate. A guy named NileRed has a comprehensive youtube video of this process, although I believe he
suffered from relatively low yields.
Here is the link:
https://www.youtube.com/watch?v=TLeWtkmorFI
BLaRgISH
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S.C. Wack
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That guy's been busy. It's good that he eventually (too late though) realized that it's kind of stupid to not buy the bags of pool HTH, which like
lime and KCl are sold in like all hardware stores in this country, and has multiple uses.
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Kagutsuchi
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I think I'll try to add some (roughly stochiometric amount of) H2SO4 and that will form HClO3 and CaSO4. Then I could simply pour the HClO3 on any
hidroxide to form a chlorate. My goal is not only KClO3, rather 'experinenting with chlorates to gain experience'
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blargish
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Your HClO3 would be contaminated with HCl since chloride is also produced in the reaction.
BLaRgISH
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Kagutsuchi
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Thanks for the replies, guys.
Does anyone know anything about NaOCl reacting with HClO3? Because if they don't react, I could purify the chloric acid from the contamination with
some household bleach.
Or maybe a non-soluble chlorate could be formed, while the chloride is soluble in water, then the chlorate would precipitate.
[Edited on 22-6-2015 by Kagutsuchi]
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