The V (Vanadium) system
نویسندگان
چکیده
منابع مشابه
Determination of the Stability Constant of Vanadium (V) with Alaine
Formation equilibria of dioxy vanadium (V) complex with alanine in acidic media (pH<2.3) has been investigated potentiometrically and spectrophotometrically. In this condition the 1:1 complex has the formula VO2Y, where Y¯ represent the fully dissociated aminocarboxylate anion. The stability constant of VO2Y was determined as log KVO2Y=11.32±<e...
متن کاملStability Constants of Dioxy Vanadium(V)-Glycylglycine System and a Related Calculating Model
In this research some mathematical calculations has been explained on the “ +VO2 +glycylglycine” system and some equations has been deduced to determine the stability constants ofthe equilibrium models including MLH+, ML and ML2H species (while M+ ≡ +2 VO , H2L+ ≡protonated glycylglycine and MLH+, ML and ML2H represent the considered complexes). Thecalculations are based on some relations betwe...
متن کاملTrace Amounts Determination of Vanadium (V) Using a New Kinetic-Catalytic Reaction System
This study describes a new simple, sensitive and selective catalytic kinetic spectrophotometricmethod for the determination of vanadium (V). The method is based upon the catalytic effect ofvanadium (V) on the oxidation of Carminic acid by bromate in sulfuric acid media. The reaction wasfollowed spectrophotometrically by measuring the decrease in absorbance at 490 nm and thedependence of sensiti...
متن کاملThe vanadium Magnéli phases V
To compare the metal-insulator transitions (MITs) of VO2 and V2O3 we analyze the relations between the structural and electronic properties of the vanadium Magnéli phases. These materials set up the homologous series VnO2n−1 (3 ≤ n ≤ 9) and have crystal structures comprising typical dioxide-like and sesquioxidelike regions. As the MITs of the vanadium Magnéli phases are accompanied by structura...
متن کاملVanadium(V) oxide arsenate(V), VOAsO4
The vanadyl arsenate, VOAsO(4), has been isolated by a solid-state reaction. The structure consists of distorted VO(6) octa-hedra and AsO(4) tetra-hedra sharing corners to build up VAsO(7) layers parallel to ac linked by edge-sharing of VO(6) octa-hedra, forming a three-dimensional framework.
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ژورنال
عنوان ژورنال: Bulletin of Alloy Phase Diagrams
سال: 1981
ISSN: 0197-0216
DOI: 10.1007/bf02881470