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Chemists : Suitable material for vessel to melt sodium hydroxide in?


Chris Wilson

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Use high density polyethylene (HDPE) or polypropylene (PP) which are common around the house ;)

 

Other plastics will work too but you would have to look at its chemical resistance chart. Not all plastics will work.

 

E2A

 

https://www.calpaclab.com/chemical-compatibility-charts/

 

 

Melting point of sodium hydroxide is 316 degrees Celcius.... :)

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As a Chemistry Graduate I'd recommend you use a stainless pan. For god sake and your own don't use you wifes best aluminium kitchenware as that'd dissolve. You might even get away with mild steel if its not long term containment potential you are seeking, try an old bean can first before hitting the kitchen stuff. NaOH is pretty nasty stuff in solid pelet form, molten I'd make sure you have steel gloves and a full face perspex shield. Molten NaOH will go through skin quicker than it will aluminium.

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Stripping the enamel off vintage Litz wire (multi strand wire, each strand enamel insulated, and wound in a special weave. It enhances the "skin effect" whereby RF current only flows on the skin depth of a conductor). It's from the pre `elf `n' safety era where it needs "nasty stuff" to strip it and so far molten sodium hydroxide seems the only way. I will turn a recess in a piece of steel plate and try that, thanks!

 

Dissolving a 20 inch rim fan indeed! I haven't anything big enough

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