Abstract
IT has already been shown1 that there are under suitable conditions distinct colour reactions between metallic iron and strongly alkaline solutions of special organic compounds, for example, dithio-oxamide, oximinocyanacetamide, nitrosoguanidine, oxalylhydrazide. Because this reaction may be of value in studying the passivity and corrosion of iron in alkaline solutions, it was desirable to find still more compounds acting as 'indicators' and especially to find reagents that are more stable than those mentioned. Unfortunately, conditions hitherto have not permitted a careful investigation of this matter, but preliminary experiments indicate that a large number of substances have the desired properties.
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References
Nature, 152, 189 (1943); Svensk Kem. Tid., 53, 81 (1941); 56, 295 (1944).
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NILSSON, G. New Iron Reagents for Alkaline Solutions. Nature 157, 550–551 (1946). https://doi.org/10.1038/157550b0
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DOI: https://doi.org/10.1038/157550b0
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