Published July 2001
| Version v1
Journal article
Uranovanadates of the series A+VUO6 · nH2O (A+ = H, Na, K, Rb, Cs, Tl): a study of solubility
- 1. Nizhegorodskij Gosudarstvennyj Univ. im. N.I. Lobachevskogo, Nizhnij Novgorod (Russian Federation)
Description
Solubility of uranovanadates of the series A+VUO6 · nH2O (A+ = H, Na, K, Rb, Cs, Tl) in water and in aqueous solutions of inorganic acids at 25 deg C, depending on the medium pH and concentration of impurities, was studied experimentally. It is shown that the uranovanadates considered feature maximum solubility in ultraacid range. With decrease in acidity the solubility of the substances decreases abruptly, varying insignificantly in neutral and low-alkaline medium. Data on solubility of A+VUO6 · nH2O compounds permitted calculating the Gibbs standard functions of the uranovanadates formation. A model, describing their behaviour in a wide range of aqueous solutions characteristics variation was suggested
Abstract (Russian)
Экспериментально изучена растворимость уранованадатов ряда A+VUO6 · nH2O (A+ = H, Na, K, Rb, Cs, Tl) в воде и в водных растворах неорганических кислот при 25 град C в зависимости от рН среды и концентрации посторонних примесей. Показано, что изученные уранованадаты обладают максимальной растворимостью в ультракислой области. При снижении кислотности растворимость этих веществ резко падает и меняется несущественно в нейтральной и слабощелочной среде. На основе данных по растворимости соединений A+VUO6 · nH2O рассчитаны стандартные функции Гиббса образования уранованадатов и предложена модель, описывающая их поведение в широком интервале изменения характеристик водных растворовAdditional details
Additional titles
- Original title (Russian)
- Исследование растворимости уранованадатов ряда А
Publishing Information
- Journal Title
- Zhurnal Obshchej Khimii
- Journal Volume
- 71
- Journal Issue
- 7
- Journal Page Range
- p. 1064-1069
- ISSN
- 0044-460X
- CODEN
- ZOKHA4
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- Russian Federation
- INIS RN
- 33047739
- Subject category
- S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ALKALI METAL COMPOUNDS; AQUEOUS SOLUTIONS; CHEMICAL COMPOSITION; CONCENTRATION RATIO; FORMATION FREE ENTHALPY; HYDRATES; HYDROGEN COMPOUNDS; INORGANIC ACIDS; PH VALUE; SOLUBILITY; TEMPERATURE RANGE 0273-0400 K; THALLIUM COMPOUNDS; URANIUM VANADATES
- Descriptors DEC
- ACTINIDE COMPOUNDS; DISPERSIONS; ENERGY; FREE ENTHALPY; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; INORGANIC COMPOUNDS; MIXTURES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SOLUTIONS; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; URANIUM COMPOUNDS; VANADATES; VANADIUM COMPOUNDS
Optional Information
- Notes
- 16 refs., 1 fig., 3 tabs.