Ba attachment and detachment fluxes to and from barite surfaces in 137Ba-enriched solutions with variable [Ba2+]/[SO42-] ratios near solubility equilibrium

2021 ◽  
Author(s):  
Jinting Kang ◽  
Jacquelyn N. Bracco ◽  
J. Donald Rimstidt ◽  
Gregory H. Zhu ◽  
Fang Huang ◽  
...  
Keyword(s):  
Solubility Equilibrium

EQUILIBRIA IN TWO-PHASE, GAS-LIQUID HYDROCARBON SYSTEMS: IV. METHANE AND HEPTANE

1938 ◽  
Vol 16b (11) ◽  
pp. 396-410 ◽  
Author(s):  
E. H. Boomer ◽  
C. A. Johnson ◽  
A. G. A. Piercey
Keyword(s):  
Natural Gas ◽  
Liquid Hydrocarbon ◽  
Two Phase ◽  
Complete Miscibility ◽  
Solubility Equilibrium

The densities and compositions of both phases in the methane-n-heptane solubility equilibrium have been determined at 25°, 55°, and 85 °C. at total pressures from 35 to 250 atm. The critical pressures of complete miscibility were found, and the properties of the system are discussed. The nitrogen-n-heptane system was investigated similarly at 100.9 atm. and temperatures from 25° to 115 °C. The system composed of Viking natural gas and impure heptanes was also investigated at 25 °C. The three systems, methane-pentane, -hexane, and -heptane are compared and discussed.

scholarly journals Students’ misconceptions on solubility equilibrium

2018 ◽  
Vol 1022 ◽  
pp. 012035 ◽  
Author(s):  
H Setiowati ◽  
S B Utomo ◽  
Ashadi
Keyword(s):  
Solubility Equilibrium

Disintegration of Hexagonal NaYF4:Yb3+,Er3+ Upconverting Nanoparticles in Aqueous Media: The Role of Fluoride in Solubility Equilibrium

2016 ◽  
Vol 121 (1) ◽  
pp. 656-665 ◽  
Author(s):  
Satu Lahtinen ◽  
Annika Lyytikäinen ◽  
Henna Päkkilä ◽  
Emmy Hömppi ◽  
Niina Perälä ◽  
...  
Keyword(s):  
Aqueous Media ◽  
Solubility Equilibrium

scholarly journals Microbialite-like structures in Cladophora sp. (Ulvophyceae) mats from a subtropical Andean basin: ecological implications

2019 ◽  
Vol 67 (1) ◽  
Author(s):  
Hugo R. Fernández ◽  
Ana Lucia Gonzalez Achem ◽  
Marcela Correa ◽  
Virginia H. Albarracín
Keyword(s):  
Organic Pollution ◽  
Biological Factors ◽  
X Ray Diffraction ◽  
Calcite Precipitation ◽  
Annual Cycles ◽  
X Ray ◽  
Naturally Occurring ◽  
Ecological Implications ◽  
First Time ◽  
Solubility Equilibrium

The solubility equilibrium of calcite is influenced by physicochemical, climatic and biological factors. Annual cycles of exceptionally prolonged drought, in conjunction with naturally occurring diffuse organic pollution, generate the unique conditions for the precipitation of lithified carbonate structures (microbialites). The aim of this article is to analyze the possible implications of calcite precipitation produced in mats of Cladophora sp. in an Andean subtropical basin, considering it is the first time this phenomenon is described for the region. We collected samples from selected sites at the Lules River Basin, in four sampling dates between the years 2003 and 2004, within a monitoring work of 15 years. Samples were analyzed using an electron microscope and X-ray diffraction analysis. We found that Gomphonema sp. attached to Cladophora sp. contributes to precipitation of calcite and formation of microbialite like structures, in the studied area. This work presents an initial discussion of the discovery of microbialites-like structures attached to Cladophora sp. mats in a subtropical Andean stream and the environmental conditions that lead to their production, as well as the possible ecological implications of these microbialites.

Carbon nanospheres with dual-color emission and their application in ratiometric pyrophosphate sensing

The Analyst ◽  
2019 ◽  
Vol 144 (2) ◽  
pp. 550-558 ◽  
Author(s):  
Zhong-Xia Wang ◽  
Yuan-Fei Gao ◽  
Xian-He Yu ◽  
Fen-Ying Kong ◽  
Wen-Juan Wang ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Carbon Nanospheres ◽  
One Pot ◽  
Aqueous Synthesis ◽  
Dual Color ◽  
Ph Dependent ◽  
The One ◽  
Solubility Equilibrium ◽  
Color Emission ◽  
Fluorescent Carbon

Herein, we employ pH-dependent solubility equilibrium to develop the one-pot aqueous synthesis of dual-color emission fluorescent carbon nanosphere (DFCSs) with novel physicochemical properties.

scholarly journals Solubility equilibrium learning supported by PhET-SS

2019 ◽  
Vol 1157 ◽  
pp. 042010
Author(s):  
S Sari ◽  
S A Destianti ◽  
F S Irwansyah ◽  
C Z Subarkah ◽  
H Aulawi ◽  
...  
Keyword(s):  
Solubility Equilibrium
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