Isolation of titanium (IV), zirconium (IV), niobium (V), tantalum (V), tin (IV) and thorium (IV) by precipitation with phytin
نویسندگان
چکیده
منابع مشابه
Vanadium (IV and V) speciation with a catechol derivative and tetrazolium salt
The possibility of application of 4-nitrocatechol (4-NC) - tetrazolium salt - organic solventsystems for liquid-liquid extraction-spectrophotometric vanadium (IV and V) speciation wasstudied. Six commercially available tetrazolium salts (2,3,5-triphenyltetrazolium chloride (TTC),3-(2-naphtyl)-2,5-diphenyltetrazolium chloride (Tetrazolium Violet, TV); 3-(4,5-dimethyl-2-thiazol)-2,5-diphenyltetra...
متن کاملAqueous complexation of thorium(IV), uranium(IV), neptunium(IV), plutonium(III/IV), and cerium(III/IV) with DTPA.
Aqueous complexation of Th(IV), U(IV), Np(IV), Pu(III/IV), and Ce(III/IV) with DTPA was studied by potentiometry, absorption spectrophotometry, and cyclic voltammetry at 1 M ionic strength and 25 °C. The stability constants for the 1:1 complex of each trivalent and tetravalent metal were calculated. From the potentiometric data, we report stability constant values for Ce(III)DTPA, Ce(III)HDTPA,...
متن کاملLearning IV&V Strategies
Modern business practices are complex. Consider, for example, NASA's software IV&V (independent verification and validation) team that monitors a diverse range of complex software written by a wide range of contractors from around the world. In an effort to better understand the core business of IV&V, the authors recently conducted DELPHI sessions with experienced IV&V analysts to build a model...
متن کاملSynthesis, Spectral and Antibacterial Studies of Binuclear Titanium(IV) / Zirconium(IV) Complexes of Piperazine Dithiosemicarbazones
The reactions of mono(cyclopentadienyl)titanium(IV) trichloride and bis(cyclopentadienyl)titanium(IV)/ zirconium(IV) dichloride with a new class of dithiosemicarbazone, derived by condensing piperazine dithiosemicarbazide with benzaldehyde (L(1)H(2)), 2-chlorobenzaldehyde (L(2)H(2)), 4-nitrobenzaldehyde (L(3)H(2)) or salicylaldehyde (L(4)H(4)) have been studied and different types of binuclear ...
متن کاملIon Exchange Column Performance Model for Separation of Zr(IV) and Hf(IV) in Elution Process
A mathematical model of sorption of Zirconium and Hafnium cations mixture and elution of these ions from a cation exchange resin bed is developed. Sulfuric acid is selected as the eluent for selective separation of Zr and Hf in a packed bed of Dowex cation exchange resin. The column model is a dispersed plug flow model,and assumed to consist of randomly packed synthetic and spherical resin ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1968
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.17.569