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Electroplating onto tungsten:
Electroplating onto tungsten:
==> Is it posssible to electroplate other metals onto tungsten ? ... |
24-10-2008 at 06:52
by: chief |
X-ray device powered by scotch tape...
I don'tbelieve it:
==> x-rays can be emitted from the inner shells of an large enough atom, usua ... |
24-10-2008 at 06:48
by: chief |
modeling an electric arc
Maybe one day I will try this:
==> since the object is to have a high temp , and to cool the arc ... |
23-10-2008 at 03:18
by: chief |
Manganese dioxide- make or buy?
MnO2 from Batteries is only MnO2 when fresh Batteries are used; else it is MnOx (Mn2O3, Mn3O4).
Not ... |
18-10-2008 at 07:06
by: chief |
Run-Your-Car-With-Water
An old idea of mine:
==> since liquid nitrogen is "cheaper than beer", and thereby as cheap as p ... |
13-10-2008 at 10:06
by: chief |
mixing HMnO4 and HClO3 ??
About Ba(MnO4)2 see my latest postings in the permanganates-thread [page 12]:
https://sciencemadnes ... |
12-10-2008 at 08:26
by: chief |
Permanganates
... and the ppt, upon acidification, gives a violet-color; but it always is a slightly other violet ... |
12-10-2008 at 07:12
by: chief |
mixing HMnO4 and HClO3 ??
I asked this in the short-question-thread, but maybe noone reads it there:
What cen be expected w ... |
12-10-2008 at 01:00
by: chief |
The short questions thread (1)
Mixing HMnO4 and HClO3 : What to expect ?? Do those 2 mix and co-exist, or gives it trouble, poison ... |
12-10-2008 at 00:07
by: chief |
Strange manganese dioxide (?)
The manganese-dioxides have several modifications; some are eg. grown on others (as substrate) when ... |
11-10-2008 at 13:41
by: chief |
Ammonium Chloride + Sodium Hydrogen Sulphate
In heat NH4X , with X=halogen, decomposes to NH3 + HX .
That's a equilibrium-reaction |
11-10-2008 at 06:11
by: chief |
Permanganates
It was only in the furnace for 20 minutes, incl. heating-up-time;
the furnace was controlled to ha ... |
10-10-2008 at 11:44
by: chief |
Permanganates
Success: Na2MnO4
==> from NaClO3 (not even clean,since difficult to crystallize without NaCl)
... |
10-10-2008 at 10:06
by: chief |
Common accidents in the lab and how to avoid them
==> Care to never over-heat Teflon, since many chemists died a miserable death from maybe 1breath ... |
9-10-2008 at 15:16
by: chief |
adapting a domestic MW
I don't know if "activated" does better; I now tried a cup full of charcoal for 2 minutes: It heated ... |
9-10-2008 at 11:27
by: chief |
adapting a domestic MW
Here a link upon reaching 1300 [Cels] within a standard-microwave-oven,within 5 minutes, using "acti ... |
9-10-2008 at 07:55
by: chief |
Homebuilt 1300°C tube furnace
There was a thread on this somewhere, but here is a useful link upon reaching 1300 [Cels]within the ... |
9-10-2008 at 07:52
by: chief |
300 deg/C oil bath
One other fact: The average livetime of professional cooks is limited to 60years only ! (in Germany ... |
9-10-2008 at 00:42
by: chief |
300 deg/C oil bath
The lungs clean themselves regularly, and even formar-smokers can be healthy (some sort of) a whilel ... |
8-10-2008 at 06:09
by: chief |
Homebuilt 1300°C tube furnace
Just to share 2 Ideas (not from me, but tricks of the trade) on reaching really high temoeratures:
... |
8-10-2008 at 02:58
by: chief |
Homebuilt 1300°C tube furnace
Yes, the power decreases with tempoerature, and this does self-limiting. But as the power decreases, ... |
7-10-2008 at 22:50
by: chief |
What force is needed to deform gold ?
There is such a thing as the "hardness" or "microhardness" of a material, the unit is that of pressu ... |
7-10-2008 at 14:27
by: chief |
300 deg/C oil bath
It's probably completely unhealthy to inhale paraffin-smoke ! There's also the wisdom amongst smoker ... |
7-10-2008 at 14:19
by: chief |
Homebuilt 1300°C tube furnace
It doesn't need to be Kanthal-wire. At welding-supply they sell Cr/Ni-wire (for stainless-steel-weld ... |
7-10-2008 at 08:35
by: chief |
Versuchschemie was hacked (German forum down)
Still: They did sniff upon user-behaviour by proxying ; that ought not to be ! I never turned back t ... |
6-10-2008 at 12:34
by: chief |
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