Abstract
A method for the determination of traces of oxygen in sodium metal by infrared spectrophotometry is presented. Procedures to a lower limit of 20 ppm with an accuracy to plus or minus 20% are detailed. A Wurtz reaction, employing n-amyl chloride, is followed by the application of the infrared pressed disk technique to the solid reaction products, which contain the oxygen impurity. The carbonate absorbance band at 11.38 mu , due to the conversion of the original sodium monoxide to carbonate by atmospheric carbon dioxide, follows the Lambert- Beer law between 0 and 300 ppm. A method is suggested for handling of samples, contained in glass ampoules. (auth)
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