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Titrimetric, coulometric and spectrophotometric determination of manganese following perchloric acid oxidation in the presence of pyrophosphate.
MedLine Citation:
PMID:  18960204     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Manganese is oxidized quantitatively to a violet, tervalent pyrophosphate in a boiling mixture of equal parts of perchloric acid and phosphoric add. This Mn(III) can be titrated potentiometrically or coulometrically with iron(II); it can also be measured spectrophotometrically. If the titrimetric method is carried out with titanium (III) or chromium(II), iron can also be titrated immediately after the manganese. The methods were applied to a new reference sample, ISU 600 Manganiferous Iron Ore, and to manganese ore, spiegeleisen, ferromanganese, and rail steel. Manganese(II) oxalate dihydrate has been reinvestigated as a primary standard and is highly recommended.
Authors:
J Knoech; H Diehl
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Talanta     Volume:  14     ISSN:  0039-9140     ISO Abbreviation:  Talanta     Publication Date:  1967 Sep 
Date Detail:
Created Date:  2008-10-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2984816R     Medline TA:  Talanta     Country:  England    
Other Details:
Languages:  eng     Pagination:  1083-95     Citation Subset:  -    
Affiliation:
Department of Chemistry, Iowa State University, Ames, Iowa, U.S.A.
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