Titanium and zirconium reaction passivity in solutions of the MeO2-(NH4)2SO4-H2SO4-H2O system
Creators
Description
The reaction passivity of Ti and Zr in solutions of (NH4)2TiO(SO4)2xH2O, (NH4)2SO4x2Zr(OH)2SO4x4H2O, TiOSO4xH2O and TiOSO4x2H2O has been studied at concentrations 0.05-1.5 mode/l MeO2 and SO3(acid)/MeO2 mole ratios from 0.7 to 2.0. The formation of passive and active forms is described. It is shown that passivity is associated with the structure and hydrolysis of the solid phases as well as with the hydrolysis kinetics in the solutions. Sometimes the latter factor does not affect passivity, evidently on account of formation of Me-OH or Me-O bonds of different strength. Under identical conditions the reaction passivity of zirconium is greater than that of titanium. The passivity in binary salt solutions is higher than in solutions of regular salts
Additional details
Additional titles
- Original title (Russian)
- Реакционная пассивност' титана и циркония в растворах системы MeO
Publishing Information
- Publisher
- Nauka.
- Imprint Place
- Leningrad
- Imprint Title
- Study of physicochemical properties of rare earth compounds
- Journal Page Range
- p. 28-35.
INIS
- Country of Publication
- USSR
- Country of Input or Organization
- USSR
- INIS RN
- 11557696
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- AMMONIUM SULFATES; AQUEOUS SOLUTIONS; CHEMICAL COMPOSITION; CHEMICAL REACTION KINETICS; CHEMICAL STATE; HYDRATES; HYDROLYSIS; PH VALUE; QUANTITY RATIO; ZIRCONIUM SULFATES
- Descriptors DEC
- AMMONIUM COMPOUNDS; CHEMICAL REACTIONS; DECOMPOSITION; DISPERSIONS; HOMOGENEOUS MIXTURES; KINETICS; MIXTURES; OXYGEN COMPOUNDS; REACTION KINETICS; SOLUTIONS; SOLVOLYSIS; SULFATES; SULFUR COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS
Optional Information
- Notes
- 10 refs.; 4 figs.; 3 tables. Imprint:Issledovanie fiziko-khimicheskikh svojstv soedinenij redkikh ehlementov.