Determination of Free Acid by Standard Addition with Potassium Thiocyanate as Complexant

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A method is described for determination of free acid in solutions containing the hydrolyzable ions Al (III), Cr(III), Fe(III), Hg(II), Ni(II), Th(IV), and U(VI). The concentration of the sample is calculated either by solving three simultaneous Nernst equations, by the Gran plot procedure, or by means of a microprocessor pH meter. Molar concentrations of metal ion up to 2.5 times that of the acid can be tolerated. The method has been applied to analysis of nuclear processing solutions that contain Pu(III), in addition to the ions listed above.

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Baumann, E.W. May 29, 2001.

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Description

A method is described for determination of free acid in solutions containing the hydrolyzable ions Al (III), Cr(III), Fe(III), Hg(II), Ni(II), Th(IV), and U(VI). The concentration of the sample is calculated either by solving three simultaneous Nernst equations, by the Gran plot procedure, or by means of a microprocessor pH meter. Molar concentrations of metal ion up to 2.5 times that of the acid can be tolerated. The method has been applied to analysis of nuclear processing solutions that contain Pu(III), in addition to the ions listed above.

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  • Journal Name: Analytical Chemistry

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  • Report No.: DP-MS-83-74 Rev. 1
  • Grant Number: AC09-76SR00001
  • Office of Scientific & Technical Information Report Number: 782574
  • Archival Resource Key: ark:/67531/metadc719892

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  • May 29, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • May 4, 2016, 11:37 p.m.

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Baumann, E.W. Determination of Free Acid by Standard Addition with Potassium Thiocyanate as Complexant, article, May 29, 2001; South Carolina. (digital.library.unt.edu/ark:/67531/metadc719892/: accessed August 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.