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Topic: Reaching medium high temepratures  (Read 2918 times)

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Offline max6333

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Reaching medium high temepratures
« on: January 13, 2015, 11:57:28 AM »
In a lot of my experiments I find that I need to reach 250-350 °C . Using a torch works only some times because sometimes I need to heat up a big area or I have to heat it up in a container(by torch i mean the 'desktop' one that stands up right). So what do you guys use?(I am thinking of something like a cook top but the electrical ones have a limited temeprature).Usage E.G.: turning coppera carbonate into copper oxide, melting sodium hydroxide.Also when im allready here I want to ask where is the carbothermal reduction of sodium carbonate topic I searched all the topics with sodium carbonate and didn't find it.So could the person that told me it allready existed please point me to it?

Offline Zyklonb

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Re: Reaching medium high temepratures
« Reply #1 on: January 13, 2015, 12:36:15 PM »
It's not an easy way to get sodium, but here's a video on it. https://www.youtube.com/watch?v=9l_DojAugyg
If you want sodium try sodium chloride + magnesium at 500°C at 0.001 torr.
If you're having trouble getting 250°C don't even try the 1200°C need for the carbothermal reduction of sodium carbonate.

Offline max6333

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Re: Reaching medium high temepratures
« Reply #2 on: January 13, 2015, 12:40:57 PM »
Tnx for the video, but could you focus on the heating equipment and not the carbothermal reduction now.I need it for other things and I realise the carbothermal reduction is out of my reach. I need something convenient for meling stuff(and some other thermal reductions that require lower temperatures) at the temperature of 250-350 °C.

Offline max6333

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Re: Reaching medium high temepratures
« Reply #3 on: January 13, 2015, 12:45:40 PM »
Also I allready did the magnesium plus sodium hydroxide but it burned teribly, It did make a bit of sodium but it was unretrievable(I think I need to grind it better)

Offline curiouscat

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Re: Reaching medium high temepratures
« Reply #4 on: January 13, 2015, 01:38:08 PM »
250°C ought to be easily reachable with a lot of heating oils. e.g. silicones.  e.g. Dow Corning 550 Fluid

Dowtherm G would work too. Dowtherm A is stable to even 400 C.

Above 400 C or so why not a fluidised sand bath. Those seem safer than sodium.

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