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Author: Subject: hth spa (shock) and Chloroform

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[*] posted on 26-8-2013 at 19:24
hth spa (shock) and Chloroform

I've been doing some reading on Chloroform and how you make it. I found hth spa shock at my local hardware store which has a decent % of Calcium Hypochlorite but has a lot of other stuff in it. I was just wondering if it's still good to use for this reaction considering the other things in it. I tried doing some searching on this site but didn't find much (Unless I over looked something)

Anyway, thanks a lot for answering my noob question in advance!

[Edited on 27-8-2013 by arkallic]
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lab constructor

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[*] posted on 26-8-2013 at 21:18

The single most important condition for a successful synthesis is good mixing - Nicodem
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Hazard to Others

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[*] posted on 27-8-2013 at 01:58

I tried it. The RXN went beautifully, but the precipitate of calcium hydroxide mixed in with the chloroform and I couldn't reasonably separate the two.

Next time I try it, I'll first add NaOH to exchange with the Ca and filter off the precipitate before the haloform RXN. Granted NaOCl is limited to about 23% solution, but the hydroxide side product has excellent aqueous solubility.
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National Hazard

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[*] posted on 11-9-2013 at 17:57

Yes, the reaction generates Ca(OH)2 which doesn't dissolve in water and you get a thick slush. The solution is simple : distill the chloroform out of the solution.
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