THE DETERMINATION OF RUTHENUM, RHODIUM, NIOBIUM AND ZIRCONIUM IN SEA-WATER

Technical Report · Mon Mar 27 04:00:00 EST 1950

OSTI ID:4174728

Rose, J

A method was devised for the determination of Ru, Rh, Nb, and Zr in sea water and recoveries were estimated. The elements present tn aqueous solution as anions are co-precipitated as hydroxides with ferric hydroxide by treating the sea-water with sodium hydroxide at a controlled pH of 6.9, the iron having been previously added in the form of ferric oxide dissolved in nitric acid. The precipitate is ashed in a muffle furnace (700 deg C) and witghed. It is then ground and examined spectrographically by the iron flux method, using the rare earth type of dilution. Good recoveries were obtained with Rh, Nb, and Zr, but the recovery of Ru was only of the order of 60%, probably owing to the formation of complex ions. (auth)

• Research Organization: Gt. Brit. Springfields Works, Springfields, Lancs, England
• NSA Number: NSA-14-011615
• OSTI ID: 4174728
• Report Number(s): SCS-R-129
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACIDITY
CHEMICAL REACTIONS
CHEMISTRY
COMBUSTION
FURNACES
HIGH TEMPERATURE
HYDROXIDES
IRON HYDROXIDES
IRON OXIDES
NIOBIUM
NITRIC ACID
PRECIPITATION
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
RARE EARTHS
RECORDING SYSTEMS
RECOVERY
RESIDUES
RHODIUM
RUTHENIUM
SEA
SODIUM HYDROXIDES
SOLUTIONS
SPECTROSCOPY
THORIUM
WATER
WEIGHT
ZIRCONIUM