Schöniger oxidation explained

In chemistry, the Schöniger oxidation (also known as the Schöniger flask test or the oxygen flask method) is a method of elemental analysis developed by Wolfgang Schöniger.^[1]

The test is conducted in an Erlenmeyer flask, or in a separatory funnel. It involves the combustion of a sample in pure oxygen, followed by the absorption of the combustion products by a solution of sodium hydroxide.^[2]

It allows quantitative determination of elemental chlorine, nitrogen and sulfur in a sample.

References

1. J. Francis Jr. . H . Liteanu . C . Růzicka . J . Dr. Wolfgang Schöniger, Ph.D. 4 August 1920-24 February 1971 . Talanta . 18 . 2 . I-II . 1971 . 18960870 . 10.1016/0039-9140(71)80164-9.
2. 10.1039/AN9618600003 . The oxygen flask method. A review . 1961 . Macdonald, A. M. G. . The Analyst . 86 . 1018 . 3. 1961Ana....86....3M .

Further reading

• Wolfgang Schöniger. Eine Mikroanalytische Schnellbestimmung von Halogenen in organischen Substanzen . Springer Verlag . 1. 43. Microchimica Acta . 1955 . 123–129 . 10.1007/BF01220660. 91198909 .
• Wolfgang Schöniger. Eine Mikroanalytische Schnellbestimmung von Halogenen und Schwefel in organischen Substanzen . Springer Verlag . 1–6 . 44. Microchimica Acta. 1956 . 869–876 . 10.1007/BF01262130. 91886271 .
• Wolfgang Schöniger. Analytical procedures for the flask combustion method . Pergamon Press . Proceedings of the International Symposium on Microchemistry 1958. 1958 . 93–95 .