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New pump
[rquote=163882&tid=12917&author=vulture]
There are some fluorinated oils available, that ... |
9-10-2009 at 23:15
by: merrlin |
I need someone from the planet Vulcan
There is a lot of discussion in the patent literature, along with some detail on compositions. Below ... |
7-10-2009 at 11:54
by: merrlin |
To tame a garage (aka building a lab)
Do you have any specific provision (e.g., filtered port) for makeup air to compensate for the draw o ... |
6-10-2009 at 22:29
by: merrlin |
I need someone from the planet Vulcan
Vulcanizing usually implies a reaction that produces crosslinking. Considering the wide variation in ... |
6-10-2009 at 22:13
by: merrlin |
Very tough limescale
If the scale is thick enough, heating the aluminum to a few hundred degrees Celsius might cause the ... |
24-9-2009 at 19:24
by: merrlin |
Pure In from 50/50 In/Pb
[rquote=162772&tid=12845&author=watson.fawkes]It's possible that lead sulfide forms more rea ... |
21-9-2009 at 21:58
by: merrlin |
Pure In from 50/50 In/Pb
Attached are two patent applications that describe processes for electrowinning of indium.
[f ... |
21-9-2009 at 21:52
by: merrlin |
Extra Large Capacitors For Power Storage
I guess the point that I am trying to make here is that ultra capacitors are not really that far fro ... |
16-9-2009 at 16:29
by: merrlin |
Dissolved in nitric acid
[rquote=162387&tid=12823&author=woelen]Many of the platinum metals and also gold are easier ... |
16-9-2009 at 13:24
by: merrlin |
Extra Large Capacitors For Power Storage
Maxwell Laboratories produces ultracapacitors with energy densites of up to 5.5 Wh/kg. Their large ... |
16-9-2009 at 12:38
by: merrlin |
Dissolved in nitric acid
Many ferrous alloys, such as stainless steels, will passivate in 70% nitric acid. Pure iron can pass ... |
15-9-2009 at 21:54
by: merrlin |
which substance heats fastest?
I've seen thermal diffusivities published over the range of 1.1 to 1.7 square mm/sec for ice, and it ... |
14-9-2009 at 23:08
by: merrlin |
which substance heats fastest?
[rquote=161954&tid=12810&author=Sedit]Low density compaired to what a blackhole?[/rquote]
... |
9-9-2009 at 21:13
by: merrlin |
which substance heats fastest?
The speed with which a material heats up is related to its thermal diffusivity = (thermal conductivi ... |
9-9-2009 at 19:45
by: merrlin |
depleted uranium
[rquote=161136&tid=12737&author=psychokinetic][rquote=160946&tid=12737&author=merrli ... |
31-8-2009 at 12:52
by: merrlin |
depleted uranium
SPI Supplies (http://www.2spi.com/catalog/chem/depleted-uranium-products.html) carries a number of u ... |
28-8-2009 at 14:45
by: merrlin |
depleted uranium
Does anybody know of a seller of depleted uranium (as oxide or metal), other than United Nuclear? |
28-8-2009 at 12:45
by: merrlin |
Antimony chloride?
Your accidental process sounds similar to the preparation of oxide sols through the dilution/pH redu ... |
11-8-2009 at 11:41
by: merrlin |
Exploding wires
[rquote=159677&tid=12414&author=franklyn]
" non-linear " , I'll say , if you subject piez ... |
9-8-2009 at 23:41
by: merrlin |
Detecting lead in brass?
@chloric1, I do not dispute that wet chemical analysis can be applied to the problem. The question c ... |
7-8-2009 at 14:52
by: merrlin |
Detecting lead in brass?
[rquote=159436&tid=12635&author=garage chemist]I am disappointed. Three people posting mindl ... |
7-8-2009 at 11:31
by: merrlin |
Detecting lead in brass?
[rquote=159427&tid=12635&author=12AX7]It does dissolve to a small extent though, enough that ... |
6-8-2009 at 14:05
by: merrlin |
Detecting lead in brass?
If you have a microscope available, you could try polishing and etching a sample, and look for the l ... |
5-8-2009 at 22:23
by: merrlin |
Detecting lead in brass?
[rquote=159392&tid=12635&author=JohnWW]
Pb was often used by the Germans in WW1 and WW2 as ... |
5-8-2009 at 22:10
by: merrlin |
Exploding wires
[rquote=159376&tid=12414&author=dann2]Hello,
Attached patent using no wire, just a spark ... |
5-8-2009 at 21:45
by: merrlin |
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