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Vacuum Bell????
Geez, my buddies in the jewelry trade, use a metal plate as a base, then they flip over the bottom h ... |
19-8-2009 at 17:57
by: zed |
cork/rubber bung hole makers
I've always hated using hand held borers.
Neoprene stoppers are awkwardly shaped. They are als ... |
11-8-2009 at 23:50
by: zed |
Daigger?
Daigger, at least in the past, was an outstanding supplier. Friendly, helpful, and economical. Anx ... |
7-8-2009 at 00:16
by: zed |
Understanding what U.S.C. Title 21, Chapter 13 says about List I and List II chemicals
The Chemical Handlers Manual has undergone many changes, and is not now available from the DEA websi ... |
22-7-2009 at 01:20
by: zed |
I'm setting up an organic chemistry lab...
Whichever sounds most ominous.
Personally, I was initially mentored by a Senior Pharmacy Student. ... |
26-6-2009 at 02:49
by: zed |
titanium chemistry
I would suggest it is the N-N linkage. It isn't very common, and where it exists, toxicity and/or i ... |
24-6-2009 at 16:45
by: zed |
Poll: What is YOUR level of education??
Technically, I'm a Doctor. Though such things may count for little....in terms of real world acumen ... |
23-6-2009 at 19:26
by: zed |
Best and worst smelling chemicals?
Favorite? There isn't much that beats a big snoot full of Heliotropin. It just makes you feel good ... |
23-6-2009 at 00:02
by: zed |
Frozen joints--should I be hopeless?
Bases can lock up joints so they are damned hard to move. Still, they usually can be separated..... ... |
22-6-2009 at 23:36
by: zed |
Exploding wires
Interesting. My friend Dr. Crazyfingers built an exploding wire device many years ago. Folks like ... |
22-6-2009 at 23:04
by: zed |
Formamide
As I recall, Formamide is much more expensive than either Ammonium Formate or its parent...Formic Ac ... |
22-6-2009 at 21:48
by: zed |
I'm setting up an organic chemistry lab...
Take as many chemistry classes as you can. Ask your professors if you can do some extra credit proj ... |
22-6-2009 at 21:30
by: zed |
Periodate accessible for home chemists!
Remarkably, the suppliers I have checked, sell KI more cheaply than NaI. Much more cheaply. Go fig ... |
22-6-2009 at 20:46
by: zed |
Anhydrous Diethyl Ether via NaOH?
I've prepared Benzyl Magnesium Chloride on several occasions. Never had a problem.
Used the I2 m ... |
21-6-2009 at 16:52
by: zed |
Periodate accessible for home chemists!
The following improvised filtration system, shows a very low percentage of loss.
Take a match hea ... |
21-6-2009 at 14:54
by: zed |
otc sodium borohyride
As I recall, the NaBH4 or KBH4, synthesis is not terribly difficult. |
21-6-2009 at 13:45
by: zed |
Condenser cooling
In my neck of the woods, cooling recirculated condenser water is only a problem in the Summertime. ... |
19-6-2009 at 16:23
by: zed |
Iodine
Purchasing a small amount of I2, or preferably......one of its salts, might be O.K., if the transact ... |
19-6-2009 at 14:13
by: zed |
Iodine
I'm pretty sure, it is not legal to import I2 into the U.S., without a permit. So......don't.
It i ... |
18-6-2009 at 15:02
by: zed |
Nitromethane HE purity required
Nitromethane? Easy to make, and at a much higher purity than most commercially available products.
... |
25-5-2009 at 20:48
by: zed |
fan selection for homemade fumehood - help
Stainless steel usually costs a bundle. Too much! Hastalloy would be dandy....Costs even more. G ... |
22-5-2009 at 13:26
by: zed |
Cold Fusion...........revisited
The possibility of low-tech nuclear fusion is not completely comforting.
From a national securit ... |
19-5-2009 at 18:37
by: zed |
synthetic corundum
In natural gemstones, growth lines are "geometrical" and parallel to natural crystal faces. These ... |
19-5-2009 at 16:40
by: zed |
Methylenation of catechol derivetives (Base cataylized)
Seal up your vacuum system. And, buy a real vacuum gauge. It is an inexpensive necessity.
An ... |
16-5-2009 at 15:34
by: zed |
Construction of a blast box
watson.fawkes is correct. You are building a bomb, not a safety device.
The attempted containm ... |
15-5-2009 at 19:11
by: zed |
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