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This reminds me of an incident that occured in my school lab: The lab assistant had set up an electrically heated water bath in a corner of the lab (Which was the only place where an electrical socket was available). Since this was a large lab, meant to accomodate 40+ students, it was a long walk to the bath. You had to place your test tube in the bath after ...

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There is one incredible simple, cheap and easy way to make nitrogen gas with near 99 percent purity if you don't need it compressed. I've used this method in my chemistry experiments when I needed just modest amounts of nitrogen or when I need to do reactions in the absence of reactive oxygen. Simply buy handwarmers from Walmart or many other sources. Use a ...

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A simple, but dangerous path to nitrating a metal oxide (say MgO) is to treat with NO2 gas (caution: toxic and corrosive), as to quote Wikipedia on Nitrogen dioxide: NO2 is used to generate anhydrous metal nitrates from the oxides:[10] $\ce{MO + 3 NO2 -> M(NO3)2 + NO}$ where heating mix of Cu, KNO3 and H2SO4 will generate NO2. A safer path to nitrating, ...

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Nitration reactions rely on the absence of water to proceed efficiently, in fact part of the purpose of the sulfuric acid in the mixture is as a drying agent to remove the water produced by the nitration reaction. Because potassium nitrate (and potassium sulfate for that matter) is not meaningfully soluble in concentrated sulfuric acid, it is impossible to ...

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