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- W74290146 abstract "The method is based on the formation of sodium amalgam with mercury. Sodium monoxide is insoluble in the resulting amalgam and floats on the surface. The amalgam is then completely removed by extraction with mercury. Amalgamation is performed in a special extractor in argon atmosphere which is previously purifted by passing it through a sodium --potassium alloy. Samples of sodium are stored in glass capsules. Following the extraction, sodium monoxide is dissolved in water, and oxygen is determined indirectly by flame photometry. Sodium is determined etther by hydrolyzing the amalgamate followed by titration of excess acid and sodium hydroxide to a phenolphthalein end point or by flame photometry. The size of the sample amounted to 1 g sodium. This method was used to determine oxygen in amounts above 50 ppm. The standard deviatlon of several series of analysis did not exceed 13 ppm. (auth)" @default.
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- W74290146 date "1962-01-01" @default.
- W74290146 modified "2023-09-27" @default.
- W74290146 title "DETERMINATION OF TRACES OF OXYGEN IN METALLIC SODIUM" @default.
- W74290146 hasPublicationYear "1962" @default.
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