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Author: Subject: Sodium Ethyl Sulfate
sulfuric acid is the king
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[*] posted on 11-8-2017 at 15:01


Thanks.
I think dilution is probably for less mess :D
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sulfuricacidistheking 2
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[*] posted on 16-8-2017 at 06:41


@JJay
Finally i have successfully synthisized Ca(EtSO4)2...
'I poured Na2CO3 solution into it and then CaCO3 formed...
I evaporated filtrate directly on hot plate and there was very little NaEtSO4 on the walls...
I am absolutrly unsatisfied with the yield,probaly the temp was to high it should be evaporated on water bath,but i think that wouldl take very long time.
And adding Na2CO3 was unaccurate...
So what you do after making Ca(EtSO4)2?
How you know how much is enoug (Na2CO3),and then how you exactly evaporate it?
And yeah Na2CO3 is very bad and unsoluble,it's better K,but i don't have it,maybe i'll make it...
BTW this is my new account,couse i had major HDD failure,i lost some passwords...
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JJay
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[*] posted on 16-8-2017 at 07:47


You can get a pretty good indicator of when the Ca(EtSO4)2 is neutralized when adding sodium carbonate solution does not produce a precipitate. Mix thoroughly and check the pH... I had the best luck with a pH of about 9... there was a lot of decomposition when evaporating the water with lower pH for some reason. I concentrated it on a hotplate, filtering any salts that precipitated out (calcium bicarbonate seems to be problematic here). Then I heated it on a hot water bath until the liquid hardened like rock candy when removed on a spatula and decanted onto a surface and allowed it to cool. It's somewhat easier to remove from aluminum foil than a glass plate.



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