Electrical resistance of tungsten

When a current of 40 amps at 7 volts is passed through a short section of tungsten welding electrode an intense glow is observed which leaves the section of tungsten rod in the same condition as before. If this was sealed in a large ampule of a noble gas such as argon, krypton or perhaps helium a fairly reasonable search light bulb could be produced.

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Education

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• Tungsten
• Electricity
• Resistance
• High
• Voltage
• Amp
• Mot
• Microwave
• Oven
• Transformer
• 2lazy2thinkofsomthin

[2Lazy2ThinkOfSomthin]

@mekkiseghier certainly not chlorine gas but definitely argon, can't use the 3 Nobel gasses before that because they are lighter than air and the last two Nobel gasses can't be used because they are unobtainable and radioactive or extremely deadly. Not chlorine, though lots of problems with chlorines reactivity and dangerous nature. Argon would be your best bet because it's not lighter than air and still inert (non reactive). Have a nice day!

[mekkiseghier2002]

can i make a melting steel furnace with the tungsten( i must arrive to 1600 C at least) if i replace the air by the Cl 2 [Cl2 is more heavy than the air ]to prevent the oxydation of the tungsten (fusion point 3500 C) and i want to use the graphit [fusion point 3000 C (battery Column )]inside the furnace for the electric conduction.i think that the 1st problem is ;is the chlore suitable ?or other gaz;neon or else .the 2nd ; can i melt an acceptable quantity of the steel ?.is it possible? thanks