DETERMINATION OF SILICON IN ZIRCONIUM SALTS BY THE SILICOMOLYBDIC BLUE METHOD (in Polish)
Journal Article
·
· Prace Inst. Hutniczych
OSTI ID:4634435
The determination of silicon in zirconium nitrate, sulfute, and chloride and in potassium fluorozirconate is described. Silicic acid is converted into the colorimetrically active form by heating the solution with an addition of 0.5 n sodium hydroxide. Precipitation of zirconium ions in these conditions is prevented by an addition of solution of ammonium carbonate. Silicomolybdic acid formed at pH = 1 is reduced with ascorbic acid in 0.8 n sulfuric acid. Interference due to phosphorus and arsenic is eliminated by an addition of 10% solution of citric or tartaric acid to the mixture of heteropolyacids, whereby only phosphoro and arsenomolybdic acids are decomposed. (auth)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-17-038951
- OSTI ID:
- 4634435
- Journal Information:
- Prace Inst. Hutniczych, Journal Name: Prace Inst. Hutniczych Vol. Vol: 14
- Country of Publication:
- Country unknown/Code not available
- Language:
- Polish
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Related Subjects
ACIDITY
AMMONIUM COMPOUNDS
ASCORBIC ACID
CARBONATES
CHEMISTRY
CITRIC ACID
COLOR
HEATING
INTERFERING ELEMENTS
MOLYBDENUM COMPOUNDS
ORGANIC ACIDS
POTASSIUM FLUORIDES
PRECIPITATION
QUANTITATIVE ANALYSIS
SILICON
SILICON COMPOUNDS
SILICON OXIDES
SODIUM HYDROXIDES
SOLUTIONS
STABILITY
SULFURIC ACID
TARTARIC ACID
VITAMIN C
VITAMINS
ZIRCONIUM CHLORIDES
ZIRCONIUM FLUORIDES
ZIRCONIUM NITRATES
ZIRCONIUM SULFATES
AMMONIUM COMPOUNDS
ASCORBIC ACID
CARBONATES
CHEMISTRY
CITRIC ACID
COLOR
HEATING
INTERFERING ELEMENTS
MOLYBDENUM COMPOUNDS
ORGANIC ACIDS
POTASSIUM FLUORIDES
PRECIPITATION
QUANTITATIVE ANALYSIS
SILICON
SILICON COMPOUNDS
SILICON OXIDES
SODIUM HYDROXIDES
SOLUTIONS
STABILITY
SULFURIC ACID
TARTARIC ACID
VITAMIN C
VITAMINS
ZIRCONIUM CHLORIDES
ZIRCONIUM FLUORIDES
ZIRCONIUM NITRATES
ZIRCONIUM SULFATES