If the extraction in EtOH presents issues for you, you can always revert to Ca(OH)2 instead of NaOH. Just dissolve up the Hydrazine sulfate, add
req’d (or even excess) Ca(OH)2, heat with vigorous stirring for an hour or two, and then decant/filter while hot.
And if the resulting N2H4 conc% is too low, you can always pull out excess water w/ sieves since they won’t react with any of the hydrazine.
If you need the Hydrazine in Ethanol alone for whatever reason, you can just add EtOH to the N2H5OH, add a shit ton of sieves, and then filter.
[Edited on 15-4-2024 by dettoo456] |