Peroxid Posted July 1, 2006 Share Posted July 1, 2006 Hy all! I found on the internet this recipe about synthesis of pentaerythrit. To a mixture of 18.5 of Ca(OH)2 and 75g formaldehyde in 500cc of H2O is slowly added 22g of acetaldehyde. The temperature of the mixture is maintained at 15° during the addition of acetaldehyde and then gradually raised to 45°. The calcium is precipitated with oxalic acid the calcium oxalate removed by filtration and the filtrate evaporate to dryness under reduced pressure. the residue is taken up in 200cc of hot ethanol and the resulting solution allowed to cool the PE wich separates weighs 50g (73.5% of the theoretical amount) and melts at 258 . pure PE melts 260°. " Is it works? Thanks for your helps! Link to comment Share on other sites More sharing options...
Mumbles Posted July 1, 2006 Share Posted July 1, 2006 Not a fucking chance this is flying. It's not actually an HE yet, but this is still not being allowed. If you can't tell if that will work or not you 1) haven't done enough research, and2) should not even think about attempting it without some sort of chemsitry knowledge. locked Link to comment Share on other sites More sharing options...
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