A SIMPLE TITRIMETRIC METHOD FOR THE DETERMINATION OF OSMIUM(IV) IN STANDARD CHLORIDE SOLUTIONS AND INTERMETALLIC ALLOYS

被引：3

作者：

Vrublevska, T. ^{[1
]}

Rydchuk, M. ^{[1
]}

Bonishko, O. ^{[1
]}

Mykhalyna, G. ^{[1
]}

机构：

[1] Franko Lviv Natl Univ, Lvov, Ukraine

来源：

MATERIALS SCIENCE | 2010年 / 46卷 / 03期

关键词：

osmium(IV) hexachloride; standardization; titrimetry; potentiometry; intermetallic alloy; SPECTROPHOTOMETRIC DETERMINATION; RUTHENIUM; KINETICS;

D O I：

10.1007/s11003-010-9303-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new method for the determination of osmium(IV) in aqueous chloride solutions by means of the iodometric titration with visual (by using starch as an indicator) and potentiometric indications of the end of the process of titration is developed. This simple and rapid method is based on the interaction of Os(IV) with the excess iodide ions in sulfuric-acid media and on the titration of liberated iodine with a standardized solution of sodium thiosulfate. The method was approved by detecting the milligram quantities of osmium(IV) in standard solutions and intermetallic alloys. The relative standard deviations (RSD) did not exceed 1.5%.

引用

页码：399 / 407

页数：9

共 5 条

[1] A simple titrimetric method for the determination of osmium(IV) in standard chloride solutions and intermetallic alloys
T. Vrublevska
M. Rydchuk
O. Bonishko
G. Mykhalyna
Materials Science, 2010, 46 : 399 - 407
[2] Spectrophotometric determination of osmium (IV) ions in intermetallic compounds
O. S. Bonishko
T. Ya. Vrublevs’ka
O. Z. Zvir
O. P. Dobryans’ka
Materials Science, 2008, 44 : 248 - 253
[3] Titrimetric determination of Cremophor® EL in aqueous solutions and biofluids Part 2:: Ruggedness of the method with respect to biofluids
Kunkel, M
Meyer, T
Böhler, J
Keller, E
Frahm, AW
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS, 1999, 21 (05) : 911 - 922
[4] Determination of ruthenium and osmium in each other's presence in chloride solutions by direct and third-order derivative spectrophotometry
Balcerzak, M
Swiecicka, E
TALANTA, 1996, 43 (03) : 471 - 478
[5] Determination of corrosion rate of molybdenum, rhenium and their alloys in sodium chloride solution by the method of Tafel extrapolation
Shaldaev, V. S.
Malofeeva, A. N.
Davydov, A. D.
RUSSIAN JOURNAL OF ELECTROCHEMISTRY, 2014, 50 (10) : 994 - 998

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