A rapid method for the determination of lead in steel

Abstract

A rapid method is described for the determination of lead in steel, alloy steel and cast iron. By this method the absorption due to the presence of colloidal lead sulphide in alkaline solution is measured with the Spekker absorptiometer, the interference of iron being prevented by complexing it as the ferrocyanide. The effect of individual constituents in alloy steel is considered briefly. The lead content of a steel can be determined in about 30 minutes on a 0-2-g sample, compared with the 1 to 2 days and 6 to 10-g sample required for the normal methods.

Ferrous Metallurgy

“…LEAD By reaction of lead with sodium sulfide, lead in steel was determined turbidimetrically (32). Polarographic methods and x-ray spectroscopy have been applied (53).…”