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5 votes

How to dissolve metallic lead fast in nitric acid?

Some ideas are given by Bell[1]. The author recommends: Experiments in this laboratory have shown that mixtures of fluoroboric acid, hydrogen peroxide, and ethylenediaminetetraacetic acid (EDTA) ...
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4 votes

Why is Pb3O4 called lead(II,IV) oxide?

@Poutnik gave us the Wikipedia link which basically contains the answer: Lead tetroxide ("red lead"), a mixed oxide with formula $\ce{Pb3O4}$, may be thought of as lead(II) ortho-plumbate(...
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