inspection, Evaluation Technology, Environment, Recycle
Rapid and Simple Detection Method of Bismuth in Bronze Castings
2020 Volume 59 Issue 1 Pages 325-328
Details
2020 Volume 59 Issue 1 Pages 325-328
It is known that an acidic solution containing bismuth （Ⅲ） ion turns yellow by thiourea. In this study a colorimetric method with thiourea was investigated as a rapid and simple detection method of bismuth in bronze castings. Bismuth in bronze castings was dissolved in a hydrogen peroxide and nitric acid solution at room temperature for a short time. It was confirmed that the solution dissolved bismuth turned yellow by adding thiourea.
