Improvement of the measurement precision for the amount of oxygen present in sodium by the amalgamation method

The difficultiws in analyzing oxygen present in trace amounts in liquid sodium by the amalgamation method stem from the possibility of contamination of sodium during the manipulations and transfers. The precision has been improved by developing a method of working which made it possible to estimate the contamination during each analysis. The results obtained are compared to the values obtained by the classical amalgamation method and also those quoted by Noden, obtained by vacuum distillation or by use of the vanadium-wire and the electrolytic oxygen meter. (Auth.)