Thumbnail
Access Restriction
Open

Author Miller, F. J. ♦ Thomason, P. F.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher American Chemical Society (ACS)
Language English
Subject Keyword INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY ♦ ACIDS ♦ CATIONS ♦ COPPER COMPOUNDS ♦ DIAGRAMS ♦ ELECTRIC POTENTIAL ♦ ERRORS ♦ HYDROFLUORIC ACID ♦ HYDROLYSIS ♦ NITRIC ACID ♦ QUANTITATIVE ANALYSIS ♦ REACTIVITY ♦ RECORDING SYSTEMS ♦ SOLUTIONS ♦ SULFURIC ACID ♦ TEMPERATURE ♦ THORIUM COMPOUNDS ♦ URANYL COMPOUNDS ♦ WATER ♦ ZIRCONIUM COMPOUNDS
Abstract A thermometric titration method is presented for determining acid in aqueous solutions of zirconyl ion in hydrofluoric acid, uranyl ion in sulfuric acid, uranyl and copper(II) ions in sulfuric acid. thorium(IV) ion in nitric acid, and uranyi ion in nitric acid. This free acid'' is determined by iitrating the test solution with a standard solution of a base and recording the change in temperature during the titration. Temperature, as detected by a thermistor, is plotted automatically by a recording potentiometer vs. volume of titrant added. The end point of the titration is obtained by extrapolating the straightline portions of the curve to their point of intersection. Milliequivalent quantities of free acid can be determined. For 0.1 meq., the relative standard error is plus or minus 1 to plus or minus 2% at the 95% confidence level; for 0.01 meq., it increases to about a 5%.
ISSN 00032700
Educational Use Research
Learning Resource Type Article
Publisher Date 1959-09-01
Publisher Department Oak Ridge National Lab., Tenn.
Journal Analytical Chemistry
Volume Number 31
Issue Number 9
Organization Oak Ridge National Lab., Tenn.


Open content in new tab

   Open content in new tab