On Mon, 04 Jun 2012 12:18:47 -0400 Mark Wendt <mark.we...@nrl.navy.mil> wrote:
> On 06/04/2012 11:40 AM, dave wrote: > >> Nope, the label on this one sez "Ethyl Alcohol, U.S.P" > >> 200 proof > >> Anhydrous > >> For industrial use only > >> Bottled by The Warner-Graham Company in Cockeysville, MD, just down > >> the road a bit from me here at work. > >> > > 200 proof is anhydrous only until you open the bottle especially in > > high humidity areas. No way to win that one it is just too > > hydroscopic. There are a couple of way to make anhydrous alcohol, > > the industrial way by azeotropic distillation with benzene which > > will leave traces of benzene; very hard on the liver and > > distillation over sodium. Naturally, all of us keep a still with > > ground glass joints and a pound of sodium around just so we can > > make 200 proof. ;-) > > > > Dave > > > Not that I'd know anything about stills and such... ;-) P Chem should have taken care of that. I had a friend that needed to distill some wine ---> brandy. He said he had a friend that had a friend that knew a friend with a still. ;-) Dave Still (npi) crude stills are easy ... we needed to clean up gals of toluene used for extracting hops for brewing value and also for doing the distillation moisture. Three 8 x 16 concrete blocks, one 55 gal drum, 3 feet of pipe to screw into the bung loosely packed with SS wool feeding Cu pipe 2" outside with 3/4" inside with appropriate fittings. Garden hose to low end of condenser and short hose at top to waste. Propane burner underneath. All of this in a gravel parking lot 100' from the lab. It scared the hell out of some people but it worked and we recovered and reused drums of toluene that way. It was only good for the moistures at that point but it sure beat using analytical grade toluene. Dave > > Mark > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. > Discussions will include endpoint security, mobile security and the > latest in malware threats. > http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
