Hajar - 20-10-2014 at 23:44
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hi everybody,
Would anyone help me on, What material should i put in commercial microwave for the liquid sodium hydroxide?
And would anyone help me which company may provide me that microwave and NaOH safe apparatus.
j_sum1 - 21-10-2014 at 00:09
I really don't understand your question.
Sodium hydroxide is a solid under normal circumstances. Although it does dissolve in water to form a solution.
I am not sure why you would put sodium hydroxide in a microwave oven.
violet sin - 21-10-2014 at 02:09
quick assumption here, but, are you trying to microwave solid NaOH until it fuses? w/o using metal because of oven sparks, and w/o glass because NaOH
will eat through it while molten and no plastic because of fused salt temp? cause that is not so easy off the top of my head.
please elaborate on your question in more than two sentences. if your trying to melt it, maybe a silver or nickle crucible and a bunsen burner are in
order. but I did find this also: http://web.ornl.gov/info/reports/1956/3445603500995.pdf
" Magnesium oxide is not only chemically stable in fused sodium hydroxide but is also quite insoluble. In corrosion tests, Steidlitz and Smith4 found
that single-crystal specimens of magnesium oxide in a large excess of anhydrous sodium hydroxide at 800°C. decreased in thickness by less than 0.001
in. in 117 hr "
[Edited on 21-10-2014 by violet sin]
Little_Ghost_again - 21-10-2014 at 03:14
clay flower pots work ok, glazed high temp ceramic also is ok, but the molten stuff is pretty nasty andmy microwave didnt do too many batches before
something inside got eaten.
how much do you need?
Metacelsus - 21-10-2014 at 07:16
If you just need to melt it, use a regular heat source and a nickel crucible (I got mine from Elemental Scientific).