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Capillary tube for vacuum distillations [quote]If all else fails you can use CO2 for most things or scrub O2 from air[/quote] CO2 would pro ...	4-12-2006 at 03:39 by: Hilski
Capillary tube for vacuum distillations [quote][i]Originally posted by neutrino[/i] Sorry, but the He gas sold for balloons and such is not ...	2-12-2006 at 14:02 by: Hilski
No more Providone Iodine over the counter? Its still available everywhere here. Even the dinky little "every thing's a dollar" chains carry it ...	2-12-2006 at 09:10 by: Hilski
Capillary tube for vacuum distillations Wow. I would have thought that it would need a lot more than what a balloon could hold, so I'm glad ...	2-12-2006 at 08:58 by: Hilski
Capillary tube for vacuum distillations Thanks for the replies. Benzaldehyde is near the top of the short list of things I would like to ...	2-12-2006 at 07:18 by: Hilski
Capillary tube for vacuum distillations I was just wondering if anyone has ever successfully used a capillary tube to stir/agitate the conte ...	1-12-2006 at 21:31 by: Hilski
Anodizing dye I always used Rit brand concentrated dye, and never had any problems at all. I mostly anodized thin ...	23-11-2006 at 15:37 by: Hilski
Aldehyde distillation/purification [quote][i]Originally posted by Nicodem[/i] You read wrong. It just needs to be neutral (devoid of a ...	19-11-2006 at 06:31 by: Hilski
Aldehyde distillation/purification I have several hundred ml of an orange mixture of benzaldehyde, toluene and a bit of whatever else m ...	19-11-2006 at 02:05 by: Hilski
Just a few pictures Here is how the mixture looks after the reaction is complete: [img]http://www.sciencemadness.org/ ...	6-11-2006 at 07:18 by: Hilski
Anyone ever built an overhead stirrer? Just an update: I ended up using (temporarily) a small shaded pole AC motor I had. I think it ca ...	5-11-2006 at 08:41 by: Hilski
"Carbon carbide" I have heard the head metallurgist in the Q.A. lab at the company I work for, refer to a compound he ...	2-11-2006 at 19:12 by: Hilski
Anyone ever built an overhead stirrer? Sorry. Let me clarify that. I mean all the ones [u]I[/u] have are stepper motors. I had 2 Epson p ...	1-11-2006 at 14:26 by: Hilski
Anyone ever built an overhead stirrer? Now I know why I never considered using printer motors. They're ALL bipolar stepper motors, and I d ...	1-11-2006 at 09:23 by: Hilski
Anyone ever built an overhead stirrer? [quote][i]Originally posted by Magpie[/i] What about a "chuck" of some kind, like on a drill. Perh ...	31-10-2006 at 10:03 by: Hilski
Anyone ever built an overhead stirrer? I just took apart an old printer I had. These are the motors that were in it. Are they suitable fo ...	31-10-2006 at 09:35 by: Hilski
Manganous-Ammonium alum and derivatives for use of toluene oxidation to benzaldehyde Just an update: This stuff does indeed work for oxidizing toluene. Sorry, but I don't have any pic ...	31-10-2006 at 09:32 by: Hilski
Anyone ever built an overhead stirrer? [quote][i]Originally posted by bio2[/i] A motor from an old printer in a standard clamp on a ring ...	31-10-2006 at 07:35 by: Hilski
Anyone ever built an overhead stirrer? Yes. Basically I need to make a bearing for the stirrer shaft, to keep it from moving around too mu ...	30-10-2006 at 11:38 by: Hilski
Anyone ever built an overhead stirrer? I'm going to try and build an overhead stirrer similar to the one shown here: http://designer-dru ...	29-10-2006 at 10:42 by: Hilski
toluene --> benzaldehyde [quote][i]Originally posted by herbalextractions[/i] whats happened to all the pictures? [/quote ...	26-10-2006 at 08:37 by: Hilski
Manganous-Ammonium alum and derivatives for use of toluene oxidation to benzaldehyde [quote]Keeping some vapor pressure of a volatile solvent residue or deliberately added impurity li ...	21-10-2006 at 15:04 by: Hilski
Manganous-Ammonium alum and derivatives for use of toluene oxidation to benzaldehyde I almost forgot. Here are a couple of pictures of the cell after about running at 4 amps for 22+ ho ...	20-10-2006 at 20:08 by: Hilski
Manganous-Ammonium alum and derivatives for use of toluene oxidation to benzaldehyde [quote]I take it you mean the " ous " reduced salt as opposed to the " ic " oxidized salt ?[/quote] ...	20-10-2006 at 13:25 by: Hilski
Manganous-Ammonium alum and derivatives for use of toluene oxidation to benzaldehyde [quote]This electrolytically regenerated reagent scheme should also be applicable to other polyvale ...	20-10-2006 at 10:20 by: Hilski
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