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Mine platinum from the dust next to highways
IIRC a hydrogen-oxygen torch is hot enough to melt platinum. A 250 cu ft. tank of each might cost $U ...
3-11-2016 at 13:13
by: densest
Making Al powder yourself ?
Ball mills are discussed in fireworks discussions. Look for a publication by Sponenburg on amateur b ...
3-11-2016 at 12:28
by: densest
Soxhlet thimble help
Cellulose thimbles are available on ebay, labx, etc. at 10-15% of list. You can make your own from f ...
22-10-2010 at 22:42
by: densest
do-it-yourself nuclear magnetic resonance spectroscopy
If you have a "good enough" bandpass filter on your input, there is no energy in the images produced ...
15-10-2010 at 21:17
by: densest
Medical Laser
The disks-with-spacers in pict0009 are almost certainly selenium rectifiers. It points to a pre-sili ...
6-10-2010 at 22:41
by: densest
do-it-yourself nuclear magnetic resonance spectroscopy
The DS1085 spec doesn't include short-term frequency stability or phase noise. That suggests it isn' ...
28-9-2010 at 22:10
by: densest
Why has Mg no flame color ?
If one burned Mg in Cl2 then the discrete spectrum of Mg might show up. In making fireworks, Mg is u ...
20-9-2010 at 19:37
by: densest
Capsaicin extraction and isolation
@E-tech - the "hot" in mustard is mostly allyl isothiocyanate CAS 57-06-7 which has been used as a w ...
15-9-2010 at 10:22
by: densest
do-it-yourself nuclear magnetic resonance spectroscopy
A note to the various good people doing field computations: the papers and commercial disclosures I' ...
14-9-2010 at 15:24
by: densest
Anorganic peroxides
Well, barium sulfate -is- a salt of barium and sulfuric acid... Heating BaSO4 to 1600C decomposes it ...
12-9-2010 at 11:07
by: densest
"Bluo" optical brightener -- ferric ferrocyanide?
If you want Prussian Blue, what about a tube of watercolor or gouache from a hobby/artist supply sto ...
2-9-2010 at 09:07
by: densest
Anhydrous AlCl3 attempt
Stainless + Cl- + H2O -> no more stainless, unless it's a chloride-resistant alloy!!!

Seriousl ...
1-9-2010 at 20:45
by: densest
do-it-yourself nuclear magnetic resonance spectroscopy
Anyone in Australia (or maybe New Zealand) want an NMR? http://cgi.ebay.com/NMR-Oxford-200-Spectrome ...
1-9-2010 at 12:37
by: densest
Best solvent for EPNS?
You could always put them in a bath (choose your salts for your convenience) and electrolytically di ...
31-8-2010 at 10:15
by: densest
do-it-yourself nuclear magnetic resonance spectroscopy
Experimental pulse NMR: a nuts and bolts approach By Eiichi Fukushima, Stephen B. W. Roeder Westview ...
30-8-2010 at 21:02
by: densest
disk drive magnet NMR
There are 20 disk drive magnets on my kitchen table. Pretty strong NIB... 0.2T maybe? So the proton ...
29-8-2010 at 22:27
by: densest
Vacuum from a fridge compressor
Hmmmm... From www.mouser.com, Freescale Semiconductor MPX2102AS is $7 (plus shipping). Output is ana ...
28-8-2010 at 16:01
by: densest
Vacuum from a fridge compressor
It's pretty easy to isolate transducers especially after signal conditioning. Analog Devices & T ...
27-8-2010 at 22:48
by: densest
Drum dryer design
For an improvised mechanism, perhaps a spray/vacuum dryer? Spray warm aqueous solution/suspension in ...
25-8-2010 at 22:04
by: densest
Hydroxylamine HCl synthesis question
The 100% KCl salt substitute is rarer, but might be available with searching. KCl may be separated f ...
25-8-2010 at 13:13
by: densest
Drum dryer design
Denatured? ahhh... do you want your proteins cooked or raw? Because a dryer drum will cook proteins ...
25-8-2010 at 12:56
by: densest
Thoughts On Anodes
Anyone in the UK have a moment to talk to these people?

Advanced Oxidation Limited
Unit 1
Homel ...
25-8-2010 at 12:51
by: densest
do-it-yourself nuclear magnetic resonance spectroscopy
Looks like an interesting DIY project. Is the software available? Does it run on Linux? Winding the ...
25-8-2010 at 12:44
by: densest
steam distillation - best method?
Am I confused, or are two different meanings of "steam distillation" being conflated here?

(a) ex ...
23-8-2010 at 20:50
by: densest
Quick question on a potassium chlorate cell
There are a couple of ways to check the current... the simplest, but most expensive, is to buy a sna ...
21-8-2010 at 11:54
by: densest
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