runninfarmer
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Ideas for High Temperature Experiments in Kiln/Furnace?
Hi everybody, I recently constructed a high temp electric kiln/furance and was wondering if anybody had any good synthesis experiments to try with
it? I've just melted Aluminum in it thus far, but I'm wondering what else I could do?
I realize it's not really for organic experiments, but it'd work great for any high temp inorganic experiments if anybody knows any?
Thanks!
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daragh8008
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fun things to do would be to make single crystal Cu2O by oxidation of Cu plates. Or if you fancy a materials challenge one could try make the layered
p-type semiconductor CuAlO2. This is quite a challenge. It has taken me many months of experiments to get this material. Also trying to recrystallize
it in a CuO flux is a fun thing to try.
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Bot0nist
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Carbon disulphide can be synthesized if you can reach high enough temps. See garage chemist's thread on this. Also, it would be useful for producing
SO<sub>3</sub> for use in oleum production if you have the proper apparatus and safety setups. A lot of interesting reactions become
available to the amateur if high temp pyrolisis(sp) is possible, IIRC.
U.T.F.S.E. and learn the joys of autodidacticism!
Don't judge each day only by the harvest you reap, but also by the seeds you sow.
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AndersHoveland
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I have plenty of ideas, but they are all dangerous ones.
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Creative Way to Make Elemental Potassium?
An idea for chemical preparation of elemental potassium, which does not require electric current. It would be impractical, but very creative. Not sure
if all the reactions would work.
Ca3N2 + (6)KCl --> (3)CaCl2 + (3)K2 + N2
Distilling calcium nitride with potassium chloride in with steel-walled distillation may cause potassium to boil out. This proposed reaction would
make use of Le Chatelier's principle. Although potassium boils at 759°C, it is possible that molten potassium could be produced below this
temperature. Although lithium can burn in nitrogen, both sodium and potassium nitrides are very unstable. Sodium nitride decomposes into elemental
sodium, giving off nitrogen gas, at only 87°C.
(6)CaCl2 + Ti3N4 --> (2)Ca3N2 + (3)TiCl4
The titanium nitride (m.p. 2930°C) would be crushed into a fine powder and distilled under intense heat with calcium chloride.
Titanium tetrachloride (TiCl4) is a liquid which boils at only 137 °C.
(3)TiCl4 + (16)NH3 --> Ti3N4 + (12)NH4Cl
(3)TiI4 + (16)NH3 --> Ti3N4 + (12)NH4I
I think titanium tetraiodide (b.p. 377 °C) could be reacted with anhydrous ammonia gas to form titanium nitride and ammonium iodide. I am not sure if
the NH3 could be bubbled into molten TiI4, or if the TiI4 would need to be in the vapor phase, with the intense heat required for the reaction. The
reaction would be expected to procede because TiI4 is very acidic, and because the titanium-nitrogen bonds are stronger than titanium-iodide.
Wikipedia claims that TiCl4 "with ammonia, titanium nitride is formed"; this is not surprising since TiCl4 reacts with water to form titanium dioxide
and hydrogen chloride.
Titanium tetraiodide melts at 150 °C. It can be prepared from easily obtainable materials:
(3) TiO2 + (4) AlI3 --> (3)TiI4 + (2)Al2O3
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Quote: Originally posted by weiming1998  | | I just remembered an idea; use an electric furnace to heat Na2CO3 up to high temperatures in an inert environment. You could get pure Na2O
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[Edited on 17-3-2012 by AndersHoveland]
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albqbrian
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Melt infiltration???
Being a rocket guy, I'm always on the lookout for ways an amateur can make better nozzles. Melt infiltration is a new one that seems feasible. You
make a preform of SiC or WC. It is then infiltrated by a metal (Cu is common) at 1,000 *C or so.
The resulting metal is relatively light, very strong, and has very good thermal resistance.
If you figure out how to do this; I'll be happy to buy some of the nozzles 
Here are a couple of links:
composite.about.com/od/aboutcompositesplastics/l/aa030205.htm
www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA423925
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nora_summers
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make a superconductor! i think there is a prep online to make YCBO superconductor and one of the steps requires high temperature heating.
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franklyn
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Even more dangerous is the production of phosphorus.
________________________________________
Calcium carbide may be worth your trouble.
http://www.sciencemadness.org/talk/viewthread.php?tid=13144#...
above post from this thread
http://www.sciencemadness.org/talk/viewthread.php?tid=13144
http://www.sciencemadness.org/talk/viewthread.php?tid=2492&a...
above post from this other thread
http://www.sciencemadness.org/talk/viewthread.php?tid=2492
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Texium
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Thread Moved
20-11-2023 at 12:11 |
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