POLAROGRAPHIC STUDIES ON THE RARE EARTHS. II. EUROPIUM

Journal Article · Sun Nov 01 04:00:00 EST 1959 · Bull. Chem. Soc. Japan

DOI:https://doi.org/10.1246/bcsj.32.1159· OSTI ID:4180547

Misumi, S; Ide, Y

The double reduction waves of pure aquo tripositive europium ion, under various conditions, at the dropping mercury electrode were studied. The effects of the variations in pH, the concentration of europium ions, the anion species of supporting electrolytes, and the concentration of gelatin as maximum suppressor, etc. were examined. The electrode reaction of the first wave was irreversible and one electron reduction, and that of the second wave was the irreversible or quasi reversible two electrons reduction. The half-wave potentials of the first wave and the second wave at pH 2.95 were (E/sub 1/)/sub 1/2/ :--0.767 V. vs. S.C.E., (E/sub 2/)/sub --1.971 V. vs. S.C.E., where concentration of Eu/sup 3+/ ion: 1.104 mM in 0.1 M LiCl and 0.01% gelatin medium. (auth)

• Research Organization: Kyushu Univ., Fukuoka, Japan
• Sponsoring Organization: USDOE
• NSA Number: NSA-14-011541
• OSTI ID: 4180547
• Journal Information: Bull. Chem. Soc. Japan, Journal Name: Bull. Chem. Soc. Japan Vol. Vol: 32
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACIDITY
ANIONS
CHEMISTRY
ELECTRODES
ELECTROLYTES
ELECTRONS
EUROPIUM
IONS
LITHIUM CHLORIDES
MERCURY
POLAROGRAPHY
QUANTITY RATIO
RARE EARTHS