オキシン測定によるマグネシウム塩の間接定量法

抄録

Indirect quantitative determination of magnesium was carried out by dissolving Mg NH₄PO₄⋅6H₂O, precipitated from a magnesium salt solution, in acid and the phosphoric acid thereby formed was led to oxine phosphomolybdate which was again dissolved in an acid and the oxine in the solution submitted to bromatometry. A good result was obtained by this method. Another method was the preparation of magnesium oxinate which was allowed to dissolve in a definite excess of an acid and the excess of the acid was titrated with the standard alkali solution. The error in this method was found to be comparatively large.