Sebbass69 Posted June 10, 2009 Share Posted June 10, 2009 So I was at the pharmacy the other day, and noticed they had mineral oil and needing some to store sodium, I looked at the purity and saw that it was 99.9% pure. However, I had also found some from a chemical supplier, and I wasn't sure if theirs would be better - so I figured I would poll the audience- does everyone think / know if the mineral oil from the pharmacy would be pure enough to store my sodium, or should I get it from a chemical supplier? I try and stay away from buying things OTC (like H2SO4 drain opener, due to heavy impurities) but this is from a pharmacy, and is 99.9% so it seems like it would be pure enough... Link to comment Share on other sites More sharing options...
UC Posted June 10, 2009 Share Posted June 10, 2009 Heavy mineral oil, intended for laxative use is quite pure, but needs to be deoxygenated and dried completely. Adding a piece of sodium (or better, potassium) and letting it sit for a week or two will accomplish this. Of course, you could just deal with a tiny bit more tarnish on all the sodium and throw it all in. Link to comment Share on other sites More sharing options...
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