| Search |
| [Next Page] |
Quartz Tubing
I have some of those wheels. I tried to cut sapphire wafer and it fucking sucks, wore the diamond p ... |
8-10-2005 at 04:45
by: Quince |
HMTD problem
[quote][i]Originally posted by raistlin[/i]
What is HMTD?
Raistlin [/quote]
LOL! And I get yel ... |
8-10-2005 at 04:37
by: Quince |
TeACN
[quote][i]Originally posted by quest[/i]
I found some picture in google with some metarial in the s ... |
8-10-2005 at 04:32
by: Quince |
TeACN
[quote][i]Originally posted by axehandle[/i]
..and for those of us here who don't know the cyr ... |
8-10-2005 at 04:29
by: Quince |
Making mineral fuel ?
I think this is the wrong forum for this. |
8-10-2005 at 04:26
by: Quince |
DIY glassware
OK, broke the thimble already...knocked over a cognac bottle and it fell on the thimble... |
6-10-2005 at 20:02
by: Quince |
Etching PTFE for subsequent bonding
There are a number of commercial sodium-based etchants. What I'm wondering is if there's ... |
4-10-2005 at 23:15
by: Quince |
Nootropic syntheses -- piracetam etc.
Anyone try to synthesize any of the 'smart drugs' in the line or piracetam, aniracetam, pr ... |
3-10-2005 at 19:06
by: Quince |
Ground glass valves freezing
I ended up using a torch until the sulfur melted, and a few whacks with a mallet to get it out. I&# ... |
3-10-2005 at 15:55
by: Quince |
Ground glass valves freezing
I find that the T-joints on my Gregar extractor freeze during use and I can't turn them (someti ... |
2-10-2005 at 18:50
by: Quince |
condensers
The West condenser has a larger heat exchange area due to the large diameter inner tube. It's ... |
2-10-2005 at 15:50
by: Quince |
Azides
[quote][i]Originally posted by rogue chemist[/i]
Your welcome a_bab.
Sodium azide scans have now ... |
27-9-2005 at 19:23
by: Quince |
Sodium Azide
Anyone? |
27-9-2005 at 19:18
by: Quince |
Crystal growth and preparative details of nitrophenols (stypnic, picric acid)
Thanks, that made it all clear.
Why do people seem to prefer the long needle-like crystals? Woul ... |
27-9-2005 at 03:14
by: Quince |
Crystal growth and preparative details of nitrophenols (stypnic, picric acid)
Having left a batch of picric acid (precipitated with the help of HCl) to dry in a stainless steel v ... |
26-9-2005 at 14:23
by: Quince |
DIY glassware
Took about one hour to do the extraction, with about 3:2 by volume aspirin and acetone. Worked bett ... |
26-9-2005 at 05:07
by: Quince |
Crystal growth and preparative details of nitrophenols (stypnic, picric acid)
Considering the amount of water needed for the purification step, I ended up using a stainless steel ... |
26-9-2005 at 01:03
by: Quince |
Crystal growth and preparative details of nitrophenols (stypnic, picric acid)
Well, I guess I'll have to use my French coffee press, as it's the only Pyrex vessel I hav ... |
25-9-2005 at 18:14
by: Quince |
Crystal growth and preparative details of nitrophenols (stypnic, picric acid)
Different procedures I've found have differing amounts of H2SO4 specified for a given amount of ... |
25-9-2005 at 14:49
by: Quince |
Crystal growth and preparative details of nitrophenols (stypnic, picric acid)
I'm about to do a synthesis, so I'll try the mixture from the patent that Rosco just poste ... |
25-9-2005 at 00:01
by: Quince |
DIY glassware
Here's a slighlty better picture showing extraction of ASA with acetone. I just packed a bit o ... |
24-9-2005 at 17:16
by: Quince |
Simpler Gregar extractor
The other difference, besides being continuous, is that the Gregar can be reconfigured to do liquid/ ... |
24-9-2005 at 17:14
by: Quince |
How does K2r work??
Is silica gel powder white? Whatever it is, getting the dry powder on one's hands you can feel ... |
24-9-2005 at 14:52
by: Quince |
How does K2r work??
From the ingredients I found on the net, it's not clear to me how it works (pentane, hexane, he ... |
24-9-2005 at 02:43
by: Quince |
DIY glassware
Anyone try making their own extraction thimbles? The only ones I found are cellulose and quite expe ... |
22-9-2005 at 20:26
by: Quince |
| [Next Page] |
