FOR the analysis of the nitrate content of sea water, and for certain tests on alkaloids, it is necessary to have sulphuric acid free from all but the most minute amounts of nitric acid.

Maumene, on the above subject. The fatty oils mingled with sulphuric acid disengage heat, this action may serve to distinguish them; it separates in a striking manner the drying oils from those ...

The symbol for magnesium is Mg, and sulfuric acid is a compound containing sulfur, oxygen, and hydrogen. Its formula is written: H2SO4. So we write Mg plus H2SO4. An arrow shows the direction of ...