RingoStarr
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Calcium Acetate from Sodium Acetate in one step
I was wondering if either of the following two reactions are possible?
2Na(CH3COO) + Ca(OH)2 -> Ca(CH3COO)2 + 2NaOH
2Na(CH3COO) + CaCl2 -> Ca(CH3COO)2 + 2NaCl
I did UTFSE but either my searching skills or chemistry knowledge is lacking. Probably both actually.
Kind Regards.
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Hexavalent
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In one sense these will work, but you will have a horrible solution of mixed ions that the product you want will be very difficult to isolate from.
A better way to obtain calcium acetate would be to simply react e.g. calcium carbonate or hydroxide (as the solids) with acetic acid, or, if needed,
vinegar.
[Edited on 16-12-2012 by Hexavalent]
"Success is going from failure to failure without loss of enthusiasm." Winston Churchill
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RingoStarr
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Thank you so much for such a swift reply.
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Hexavalent
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That's no problem
What do you need calcium acetate for, anyway? Or is this just a theoretical question?
"Success is going from failure to failure without loss of enthusiasm." Winston Churchill
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m1tanker78
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Agree with Hex, the easiest method is to react vinegar with calcium hydroxide (hydrated lime) or calcium carbonate. It's best to let it evaporate
without heat which takes quite a bit of time. Some decomposition occurs even with 'mild' heating. Slight excess of acetic acid is preferable. I have a
ton of calcium acetate that i've made by this method which didn't require a lot of effort. Cheap, yet, useful for making other reagents.
Tank
Chemical CURIOSITY KILLED THE CATalyst.
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RingoStarr
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It's mainly theoretical but I might have a go at making acetone. I have about 100g of Na(CH3COO) and it was my wish to keep away from making acetic
acid, therefore Na(CH3COO) + CaCl2 -> Ca(CH3COO)2 + 2NaCl is very appealing to me but has a major drawback of impossible simple isolation of the
desired product.
Since seeing your post I think I might try a few reactions. One where I try to isolate as much Ca(CH3COO)2 as I can from 2Na(CH3COO) + Ca(OH)2 ->
Ca(CH3COO)2 + 2NaOH; another where I'll distill off acetic acid after adding HCl to Na(CH3COO) [and then make the calcium salt from that] and maybe
one trying to obtain acetone from the Ca(CH3COO)2 + 2NaCl salt mix. Baby steps though. Thanks for your guidance, all I have to do now is stick my head
in a book to check the theory and hazards.
Kind Regards.
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ThatchemistKid
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You should really use sulfuric acid not HCl for making acetic acid from sodium acetate, I believe that the HCl is to volatile and will just evaporate
out of your mixture.
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