III. On perchloric acid and its hydrates

Abstract

Stadion in the year 1816 showed that perchlorate of potassium contains 45·92 per cent, of oxygen, and that its composition is therefore represented by the formula Cl O 4 K (requiring 46·17 per cent, of oxygen). Mitscherlich and Serullas in 1830, and Marignac§ in 1841, confirmed this result, their experiments respectively showing that the salt in question contains 46·06, 46·20, and 46·17 per cent. of oxygen.