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Improvised Hempel column packing Stainless packing is rather limited. Where I work, we have some columns with coarse stainless wool p ... |
16-9-2016 at 06:18 by: Praxichys |
Improvised Hempel column packing I use these in my column:
http://www.ebay.com/itm/Ceramic-Raschig-Rings-for-Moonshine-Reflux-Col ... |
15-9-2016 at 08:39 by: Praxichys |
Glycine diazotisation in HCl - blue nitroso product? I bet the mysterious blue compound is the nitrous ester of glycolic acid.
[file]53069[/file]
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14-9-2016 at 10:55 by: Praxichys |
Collecting a volatile product Your yield will be higher if you scale the process up. Bromine vapor at STP has a mass of 7.14g/L, a ... |
14-9-2016 at 05:18 by: Praxichys |
Making Nitrates It sort of makes sense that "artificial" fermentation to produce nitrates was never industrially pop ... |
13-9-2016 at 11:57 by: Praxichys |
Nitrate by Fermentation A neat idea I was toying with for Aga's last challenge is to [i]artificially[/i] mimic the dung and ... |
13-9-2016 at 07:23 by: Praxichys |
Molecular sieves - care and feeding For the shorter alcohols, anything with more than 15% water should be distilled first.
K2CO3 work ... |
13-9-2016 at 06:18 by: Praxichys |
Acetic acid from acetone It is next to impossible on the lab scale. Any method would certainly require high pressure and prec ... |
13-9-2016 at 05:01 by: Praxichys |
decomposing sugar Acid hydrolysis, invertase maybe? It depends what you mean by decomposing. |
12-9-2016 at 05:45 by: Praxichys |
Why not EDDN? https://www.atf.gov/explosives/docs/publication-federal-explosives-laws-and-regulations-atf-p-54007/ ... |
11-9-2016 at 08:04 by: Praxichys |
Why not EDDN? Silver isn't that expensive to use as a primary. You can get bouillon on eBay, $9 for 5g, which is $ ... |
8-9-2016 at 10:43 by: Praxichys |
Why not EDDN? Ethylenediamine is nasty stuff, and next to impossible to manufacture yourself. If you can find it, ... |
6-9-2016 at 05:47 by: Praxichys |
Why are there two ways to express Acetate? There is actually a third way of expressing an acetyl group, as "Ac" (OAc or AcO when referring to a ... |
1-9-2016 at 10:31 by: Praxichys |
problem with thermocouple thermometer In my experience, any type K rated much beyond 300°C has no plastic components at all. Typically th ... |
31-8-2016 at 07:40 by: Praxichys |
NEWS: Bomb scare after illegal chemicals found at home of 'pyro enthusiast' http://www.mirror.co.uk/news/uk-news/bomb-scare-after-illegal-chemicals-8564001
It's from earlier ... |
30-8-2016 at 06:54 by: Praxichys |
A slight problem... If you have survived this far, you're going to be just fine.
Hypochlorite instantly destroys cya ... |
30-8-2016 at 05:43 by: Praxichys |
Best way to reduce noise/silence a vacuum pump? You could run the pump in a different room and just have a long vacuum line.
Rotary vane pumps ar ... |
29-8-2016 at 07:36 by: Praxichys |
Diluting oleum If you want oleum of a lower concentration, dilute it with ice cold sulfuric acid with a lot of stir ... |
24-8-2016 at 06:27 by: Praxichys |
Cold Pack Ammonium Nitrate Comparison When you heat it, waft a little to your nose. Urea decomposes to solid residues of biuret, cyanates, ... |
24-8-2016 at 05:27 by: Praxichys |
Mechanics brain teaser The spring should be irrelevant. In the relaxed state, the spring will have elongated equivalent to ... |
23-8-2016 at 09:50 by: Praxichys |
Urushiol I had a similar experience to Velzee. Here in Michigan it grows extensively, even in my backyard. I ... |
20-8-2016 at 16:34 by: Praxichys |
Can air be pumped/blown similarly like how venturi aspirators cause vacuum? https://en.wikipedia.org/wiki/Trompe |
12-8-2016 at 15:59 by: Praxichys |
Difficult hydrolysis of an hindered ester You might try an appropriate phase transfer catalyst. I can't imagine this substance having apprecia ... |
9-8-2016 at 05:22 by: Praxichys |
Red Oxygen 200 years from now, amateur experimenters will have long forgotten acetone peroxide and will instead ... |
8-8-2016 at 11:57 by: Praxichys |
100 % sulphuric acid Oleum is pretty corrosive and probably expensive to ship. I have found P2O5 online though, and it wo ... |
8-8-2016 at 06:06 by: Praxichys |
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