The solubility of CdCO3 and the physicochemical properties of Cd in seawater

Савенко, А. В.; Савенко, В. С.

doi:10.1134/s0016702909080072

Cited by 4 publications

(7 citation statements)

References 1 publication

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“…This result is in good agreement with the values calculated by Powell et al, 24 which also show that the percentage of all forms of cadmium(II) in saline water are practically constant until pH 8.5. This fact explains the similar slope of the lines that translate the dependence of total concentration of cadmium(II) with pH in seawater and in the solution of 0.05 mol dm À3 sodium nitrate in the Savenko and Savenko 17 work. No further calculations can be done with the data determined by these authors, as they did not report the complete composition of the synthetic seawater.…”

Section: -19 Iupac-nist Solubility Data Series 92supporting

confidence: 65%

“…Those experiments 5,[12][13][14]16,17 where the solid phase was well identified and the interactions between the electrolyte and the dissolved cadmium(II) ion were considered practically negligible were used to determine the thermodynamic properties of the solid cadmium(II) carbonate.…”

Section: Prefacementioning

confidence: 99%

“…Here are presented compilations and critical evaluations of the experimental solubility data for cadmium(II) carbonate, otavite, in aqueous ternary and higher-order systems. By thoroughly searching the literature published between 1901 and 2009, 18 papers [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] referring to experimental work on solubility of cadmium(II) carbonate have been found. In a previous compilation on some sparingly soluble salts of zinc(II) and cadmium(II) in water and in aqueous electrolyte solutions, carried out by Clever et al 19 in 1992, the solubility of cadmium(II) carbonate was included.…”

Section: Prefacementioning

confidence: 99%

“…17 The experiments were all conducted under different conditions of temperature, carbon dioxide partial pressure, and cadmium(II) noncomplexing and complexing electrolytes. However, the pH of all must be considered to fall in the slightly acidic and slightly alkaline region even in those cases 1,4,8,11 where this value is not specified.…”

Section: -19 Iupac-nist Solubility Data Series 92mentioning

confidence: 99%

“…A set of experiments 1,4,[7][8][9]11,17 was done in aqueous medium containing chloride in equilibrium with solid cadmium(II) carbonate. In aqueous solutions containing chlorides with pH < 8.5, it is necessary to take into account the formation of cadmium(II)-chlorido complexes 24 that increase the solubility of the cadmium(II) carbonate.…”

Section: Prefacementioning

confidence: 99%

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IUPAC-NIST Solubility Data Series. 92. Metal Carbonates. Part 1. Solubility and Related Thermodynamic Quantities of Cadmium(II) Carbonate in Aqueous Systems

Чурагулов

Schmidt²,

Zeng³

2011

Journal of Physical and Chemical Reference Data

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This paper, devoted to cadmium(II) carbonate, is the first in a series dedicated to the solubility of compounds relevant to mobility of metals in the environment. Here, we present compilations and critical evaluation of the experimental solubility data for cadmium(II) carbonate, otavite, in aqueous ternary and higher-order systems. The solubility of cadmium(II) carbonate depends on temperature, carbon dioxide partial pressure, pH, the presence of complexing ions, and ionic strength of the solution. Papers referring to solubility of cadmium(II) carbonate have been published since 1901; the thorough search of the literature in this field covered the period from 1901 through 2009. The compilation of the available experimental data is introduced with a critical evaluation. The evaluation of the experimental data considers the possible correlation between the data obtained under similar experimental conditions of temperature, carbon dioxide partial pressure, electrolyte, and ionic strength. Those experiments where the solid phase was well identified and the interactions between the electrolyte and the dissolved cadmium(II) ion were considered practically negligible were used to determine the thermodynamic properties of the solid cadmium (II)

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Section: -19 Iupac-nist Solubility Data Series 92supporting

confidence: 65%

Section: Prefacementioning

confidence: 99%

Section: Prefacementioning

confidence: 99%

Section: -19 Iupac-nist Solubility Data Series 92mentioning

confidence: 99%

Section: Prefacementioning

confidence: 99%

See 3 more Smart Citations

IUPAC-NIST Solubility Data Series. 92. Metal Carbonates. Part 1. Solubility and Related Thermodynamic Quantities of Cadmium(II) Carbonate in Aqueous Systems

Чурагулов

Schmidt²,

Zeng³

2011

Journal of Physical and Chemical Reference Data

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Dissolution Kinetics of Epitaxial Cadmium Carbonate Overgrowths on Dolomite

Plante

Lee

Eng

et al. 2018

ACS Earth Space Chem.

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Thin films grown on mineral surfaces can immobilize toxic metals in natural systems, but the effects of epitaxy and film thickness on dissolution rates of the overgrowth are typically unknown. To explore these effects, otavite (CdCO3) films were grown on dolomite (104) surfaces from aqueous solutions containing [Cd] = [Ca] = [CO3] = 0.2 mM for 1–48 h and then dissolved in deionized water. Films of various thicknesses and strain states were obtained by varying the growth reaction time. Growth for up to 3 h produced strained thin films with Cd coverages of <4.3 ± 0.6 equivalent monolayers (ML) (corresponding to a thickness of up to 17 Å), whereas reaction times of up to 48 h produced thicker films with as many as 114 ± 14 equivalent ML of Cd. Intrinsic dissolution rates were measured as a function of otavite film thickness by a combination of synchrotron X-ray fluorescence, specular X-ray reflectivity, and atomic force microscopy. The initial dissolution rates for unstrained films were comparable to those reported for synthetic otavite powders, whereas the thinnest films (<3.1 ± 1.1 ML) dissolved at a 50% slower rate, indicating that epitaxial strain effectively enhanced their stability. We discuss potential reasons for this difference.

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Bio-energy fuel market structure imperative formation

Kvasha¹,

Melnyk²

2019

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The production and use of biofuels made of bioenergy crops is a central issue in many countries around the globe in addressing climate change, reducing greenhouse gas emissions and gaining energy independence. The purpose of the study is to substantiate the theoretical position of the biofuels market, to uncover the major players in the biofuels market and the major factors that affect the biofuels market in general. The methodological basis of the research is general scientific and specific methods of cognition of economic phenomena, a systematic approach to the study of socioeconomic systems related to the production and sale of biofuels. It has been founed that the bioenergy fuel market is an industry market where state government is a regulator, between producers and consumers of biofuels based on the demand and supply of biofuels. The configuration of market and scientific approaches to its definition in domestic and foreign sources has been investigated. The main factors of bioenergy fuels market conditions which influence the development and formation of the internal market of biofuels have been identified. It is stated that the formation of the internal market of bioenergy fuels depends on state regulations, the development of integrated state programs and strategies, as well as due to the established subsidies and preferences for producers and consumers of bioenergy fuels. It has been determined thar the concept of bioenergy fuel market depends on the level of supply and demand, prices and sales volumes of bioenergy fuels and biomass. It is proved that the development of the internal market of bioenergy fuels is shaped by established or recommended volumes of biofuel consumption, implementation of existing standards and quality certificates to European standards, and the raw material base or biomass of energy crops and the attraction of internal and external investment. Prospects of further research will be focused on the formation of the internal market of bioenergy fuels and the study of foreign experience of market functioning.

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The solubility of CdCO3 and the physicochemical properties of Cd in seawater

Cited by 4 publications

References 1 publication

IUPAC-NIST Solubility Data Series. 92. Metal Carbonates. Part 1. Solubility and Related Thermodynamic Quantities of Cadmium(II) Carbonate in Aqueous Systems

IUPAC-NIST Solubility Data Series. 92. Metal Carbonates. Part 1. Solubility and Related Thermodynamic Quantities of Cadmium(II) Carbonate in Aqueous Systems

Dissolution Kinetics of Epitaxial Cadmium Carbonate Overgrowths on Dolomite

Bio-energy fuel market structure imperative formation

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