Rapid Determination of Nitrogen in Iron and Steel. Part III

Studies on the Colorimetric Determination with Phenol and Hypochlorous Acid (II)

Abstract

The blue color of ammonia in alkalish solution with phenol and hypochlorite gives the maximum coloration in the concentration of 0.3 N sodium hydroxide solution. This color reaction was applied to the, determination of nitrogen in iron and steels, and accurate results were obtained.