Results 21 to 30 of about 47,763 (294)

Reduced adsorption of caesium on clay minerals caused by various humic substances [PDF]

open access: yes, 1999
The effect of the addition of various humic substances on the adsorption of caesium on two mineral clays has been studied. All measurements were carried out in dilute suspension under controlled conditions of temperature and ionic strength.
Dumat, Camille   +4 more
core   +1 more source

Clays as Vehicles for Drug Photostability

open access: yesPharmaceutics, 2022
Clay minerals are often used due to their high adsorption capacity, which has sparked interest in their biological applications to stabilize drugs and pharmaceutical products.
Monsuêto C. da Rocha   +8 more
doaj   +1 more source

Chemistry and mineralogy of clay minerals in Asian and Saharan dusts and the implications for iron supply to the oceans [PDF]

open access: yesAtmospheric Chemistry and Physics, 2014
Mineral dust supplied to remote ocean regions stimulates phytoplankton growth through delivery of micronutrients, notably iron (Fe). Although attention is usually paid to Fe (hydr)oxides as major sources of available Fe, Fe-bearing clay minerals are ...
G. Y. Jeong, E. P. Achterberg
doaj   +1 more source

Prefferred orientations and anisottropy in shales: Callovo-oxfordian shale (France) and opalinus clay (Switzerland) [PDF]

open access: yes, 2008
Anisotropy in clay-rich sedimentary rocks is receiving increasing attention. Seismic anisotropy is essential in the prospecting for petroleum deposits.
R.Van Loon, L.   +6 more
core   +1 more source

The Impact of Large Grain Clay Minerals on X-ray Diffraction Quantitative Analysis of Clay Minerals

open access: yesYankuang ceshi, 2018
BACKGROUND Current X-ray Diffraction analysis of clay minerals is used to detect the clay mineral assemblages and contents of suspended solution with a particle size of less than 2 μm, but the content data is sometimes inconsistent with other test data ...
XIE Gu-wei   +7 more
doaj   +1 more source

Study on the Effect of Temperature on Potassium Uptake by Zeolite

open access: yesYankuang ceshi, 2014
Absorption of potassium ion selectively is a typical characteristic of zeolite. Potassium uptake is one of the important physical and chemical properties of zeolite, which is influenced by temperature. At present, the instruction about temperature in the
CHEN Yan-fang   +2 more
doaj   +2 more sources

Computation of edge- and vertex-degree-based topological indices for tetrahedral sheets of clay minerals

open access: yesMain Group Metal Chemistry, 2022
In terms of soil conditions, clay minerals infrequently occur as homogenous mixtures of single constituents, gatherings, stages, or types of minerals.
Ahmad Al-Nashri Al-Hossain   +2 more
doaj   +1 more source

Clarifying the Effect of Clay Minerals on Methane Adsorption Capacity of Marine Shales in Sichuan Basin, China

open access: yesEnergies, 2021
The effect of clay minerals on the methane adsorption capacity of shales is a basic issue that needs to be clarified and is of great significance for understanding the adsorption characteristics and mechanisms of shale gas.
Hongyan Wang   +6 more
doaj   +1 more source

Determination of the predominant minerals in sedimentary rocks by chemometric analysis of infrared spectra [PDF]

open access: yes, 2012
The objective of the present study was to determine the predominant minerals in sedimentary rocks using Fourier-transform infrared (FTIR) spectroscopy and chemometric analysis.
Ritz, Michal   +4 more
core   +1 more source

Tritium content of clay minerals [PDF]

open access: yes, 2012
The presence, percentage, origins, and rate of formation of clay minerals have been important components in studies involving the geochemical and structural composition of waste-rock piles. The objective of the present study was to investigate the use of
Parry, W. T.   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy