FIELD: analytical methods.
SUBSTANCE: invention relates to methods for isolation and determination of osmium and may be used for these purposes in objects having different substance compositions. Method according to invention comprises oxidation of osmium into OsO4, separating resulting tetraoxide, dissolving it in alkali solution, neutralizing alkali osmium(VIII) solution in presence of potassium iodide, and potentiometric iodometric titration.
EFFECT: increased analysis accuracy due to excluded loss of osmium tetraoxide.
1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| OSMIUM POWDER PRODUCTION METHOD | 2000 |
|
RU2175020C1 |
| OSMIUM-CONTAINING PRODUCTS PROCESSING METHOD | 1993 |
|
RU2044084C1 |
| METHOD OF RECOVERY OSMIUM FROM CAKES CONTAINING SELENIUM AND NONFERROUS METALS | 2006 |
|
RU2326176C1 |
| METHOD OF RECOVERING OSMIUM FOR ION-EXCHANGE RESIN | 1998 |
|
RU2131939C1 |
| METHOD OF RECOVERING AND DETERMINING OSMIUM(VIII) IN A GAS PHASE | 2003 |
|
RU2230316C1 |
| ETHANOL CONTENT DETERMINATION METHOD | 1998 |
|
RU2146820C1 |
| METHOD OF SEPARATING AND DETERMINING OSMIUM (VIII) IN GAS PHASE | 2015 |
|
RU2592208C1 |
| METHOD FOR DISTILLING OSMIUM TO GASEOUS PHASE | 2004 |
|
RU2296171C2 |
| METHOD OF DETERMINING OSMIUM BY STRIPPING VOLTAMMETRY IN NATURAL AND MAN-MADE MATERIAL | 2011 |
|
RU2486500C1 |
| METHOD OF DETERMINING CONCENTRATION OF MOLECULAR OXYGEN IN AN ORGANIC LIQUID | 2018 |
|
RU2685763C1 |
