Stable range, substitution, cancellation, and exchange properties

1982 ◽  
pp. 87-107
Author(s):  
David M. Arnold
Keyword(s):  
Stable Range ◽  
Exchange Properties

Hydrous oxides and their cation-exchange properties

1965 ◽  
Vol 15 (10) ◽  
pp. 445-448 ◽  
Author(s):  
C. Heitner-Wirguin ◽  
A. Albu-Yaron
Keyword(s):  
Cation Exchange ◽  
Hydrous Oxides ◽  
Exchange Properties

Soil acid and exchange properties of red soil in hilly regions under different cropping patterns

2013 ◽  
Vol 38 (5) ◽  
pp. 526-529
Author(s):  
Jia-hua YANG ◽  
Yang-zhu ZHANG ◽  
Ju-sheng GAO ◽  
Li-zhao HE ◽  
Pan LEI ◽  
...  
Keyword(s):  
Red Soil ◽  
Cropping Patterns ◽  
Exchange Properties

Mirsid volcanic tuff, alkaline activation, dissolved species, optimum activation time, optimum activating concentration

2020 ◽  
Vol 71 (2) ◽  
pp. 196-201
Author(s):  
Erika Reisz ◽  
Corneliu-Mircea Davidescu ◽  
Radu Ardelean ◽  
Liviu Costea
Keyword(s):  
Sudden Increase ◽  
Activation Time ◽  
Volcanic Tuff ◽  
X Ray ◽  
Second Stage ◽  
Dissolved Species ◽  
Species Optimum ◽  
Potassium Magnesium ◽  
Exchange Properties ◽  
Activating Solution

The purpose of this article is to study the activation of the Mir�id volcanic tuff with NaOH solutions at various concentrations. To be more specific, the work investigated the evolution of the concentrations of species that passed from the tuff into the activating solutions and the quantities of dissolved species from 100 g tuff. The species found in the activating solution were: potassium, magnesium, aluminium and silicon. The shape of the curves - a sudden increase followed by a plateau or a second stage of slower increase - allowed for setting up the optimal activation time at a half-hour. Another finding was the optimal concentration of 1 N for the activating solution. X-ray diffractograms showed the increase of clinoptilolite content in the tuff, thus improving the adsorbent as well as ion exchange properties by activation with NaOH solutions.

Homologous Series of 2D Chalcogenides Cs–Ag–Bi–Q (Q = S, Se) with Ion-Exchange Properties

2017 ◽  
Vol 139 (36) ◽  
pp. 12601-12609 ◽  
Author(s):  
Jing Zhao ◽  
Saiful M. Islam ◽  
Shiqiang Hao ◽  
Gangjian Tan ◽  
Constantinos C. Stoumpos ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Homologous Series ◽  
Exchange Properties

SOIL AND SOLUTION pH AND SODIUM:CALCIUM RATIO: EFFECTS ON CATION EXCHANGE PROPERTIES OF A SODIUM-SATURATED CHERNOZEMIC SOIL

1984 ◽  
Vol 64 (1) ◽  
pp. 139-146
Author(s):  
THERON G. SOMMERFELDT
Keyword(s):  
Cation Exchange ◽  
Soil Ph ◽  
Irrigation Water ◽  
Polynomial Equation ◽  
Exchangeable Sodium Percentage ◽  
Exchangeable Sodium ◽  
Solution Ph ◽  
Chernozemic Soil ◽  
Sodium Percentage ◽  
Exchange Properties

The effects of soil and solution pH and Na:Ca ratio in solution on the exchangeable Na, Ca, and (Na + Ca) of a Na-saturated Dark Brown Chernozemic soil were studied. At soil pH 9.0, the exchangeable Na, Ca, and (Na + Ca) were 14.5, 25.4, and 21.8% greater than at soil pH 6.0. Solution pH (6.0–9.0) had small but statistically significant effects on the amount of Na and Ca adsorbed by the soil. The logarithm of exchangeable sodium percentage (ESP) was related to the Na fraction in the solution by a polynomial equation, log ESP = 0.93 [Na/(Na + Ca)]2 + 0.16 [Na/(Na + Ca)] + 0.82. Not only is replacement of exchangeable Na with Ca important in the reclamation of this soil, should it become sodic and have a high pH, but also lowering of its surface charge, through lowering of its pH, would be an important factor in its reclamation. It appears impractical to reduce soil pH by applying acidified irrigation water. Acidic amendments such as gypsum and sulfur may be more suitable. Key words: Cation exchange, solution pH, soil pH

Structural diversities in Cu(i) and Ag(i) sulfonate coordination polymers and their anion exchange properties

CrystEngComm ◽  
2015 ◽  
Vol 17 (38) ◽  
pp. 7363-7371 ◽  
Author(s):  
Suryabhan Singh ◽  
Rajendran Karthik
Keyword(s):  
Anion Exchange ◽  
Coordination Polymers ◽  
Exchange Properties

Cu(i)/Ag(i) sulfonate CPs have been synthesized and characterized. One of the CPs exhibits a reversible anion exchange for perchlorate and permanganate.

Sulfonated polytriazoles from a new fluorinated diazide monomer and investigation of their proton exchange properties

2014 ◽  
Vol 469 ◽  
pp. 225-237 ◽  
Author(s):  
Asheesh Singh ◽  
Rajdeep Mukherjee ◽  
Susanta Banerjee ◽  
Hartmut Komber ◽  
Brigitte Voit
Keyword(s):  
Proton Exchange ◽  
Exchange Properties
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