Coulometric titration of acids in isopropanol-I A rapid direct method for the determination of carbon in steel.
A new procedure is described for the direct coulometric titration of the carbon dioxide liberated in the high-temperature combustion of steel. The carbon dioxide is absorbed in isopropanol containing 3% of ethanolamine and titrated with 100% titration efficiency with a constant current of 50 mA and spectrophotometric detection of the end-point. The accuracy and precision of the method have been established by the analysis of a wide range of standard steel samples.
Metters
B
B
Department of Pure and Applied Chemistry, University of Strathclyde, Cathedral Street, Glasgow. C.1 U.S.A.
Cooksey
B G
BG
Ottaway
J M
JM