scholarly journals Preparation, Characterization and Analytical Application of Tin (IV) Tungstoselenate - 1, 10 Phenanthroline

2021 ◽  
Vol 37 (4) ◽  
pp. 997-1001
Author(s):  
Esmat Laiq ◽  
Syed Ashfaq Nabi

Synthesis of a composite ion exchange material Tin (IV) tungstoselenate - 1, 10 phenanthroline has been achieved by mixing differentvolume ratios of the organic counterpart with the inorganic ion exchangertin (IV) tungstoselenate. Final sample, having 0.88mmoles of 1, 10 phenanthroline per gram of inorganic ion exchanger, was chosen for characterization, including ion exchange capacity, thermogravimetric analysis, and Fourier transform infrared spectroscopy. The ion exchange capacity of Li+, Na+, Ca2+, Sr2+ metals was determined by using the synthesized material. The adsorption behavior of Al3+,Co2+,Ni2+,Cu2+,Cd2+,Pb2+ in various solvent systems have been studied. Based on distribution Coefficient (Kd) values, few analytically necessary separations of metal ions from the synthetic mixture have been achieved on the column of the composite ion exchanger.

2012 ◽  
Vol 178-181 ◽  
pp. 471-474
Author(s):  
Jin He Jiang

Inorganic ion exchanger (Li3Mn0.25Ti0.5O3) with an inverse spinel structure was synthesized by solid state reaction crystallization method. The results showed that the Li+ extraction/insertion be progressed mainly by an ion-exchange mechanism. The acid treated samples had an ion exchange capacity of 9.2mmol/g for Li+.


2012 ◽  
Vol 554-556 ◽  
pp. 856-859
Author(s):  
Jin He Jiang

Inorganic ion exchanger Li2Mn0.75Ti0.25O3 is synthesized. It was prepared by a solid state reaction crystallization method. The results showed that the Li+ extraction/insertion be progressed mainly by an ion-exchange mechanism. The acid treated samples had an ion exchange capacity of 7.4 mmol•g-1 for Li+. It had a memorial ion-sieve property for Li+.


1975 ◽  
Vol 53 (17) ◽  
pp. 2586-2590 ◽  
Author(s):  
J. P. Rawat ◽  
S. Qasim Mujtaba

A new inorganic ion-exchanger, tantalum arsenate, has been prepared under varying conditions. The exchanger prepared by mixing 0.1 M tantalum pentoxide and 0.1 M sodium arsenate in the ratio of 1:4 at pH 0 has been studied in detail for its ion-exchange capacity, pH titrations, and Kd values. The material can be prepared reproducibly. Its analytical importance has been established by the following quantitative separations: Zr4+ from Tm3+, Zr4+ from Eu3+, Pr3+ from Eu3+, and Pr3+ from Tm3+.


2013 ◽  
Vol 842 ◽  
pp. 259-262
Author(s):  
Jin He Jiang ◽  
Wei Yu Dai

Compound [Li0.5Mn1.375O3] was a spinel-type metal compound and was prepared by a solid state reaction crystallization method. The results showed that the Li+ extraction/insertion be progressed mainly by an ion-exchange mechanism. The characterization results showed that the exchange capacity of Li+ was 2.8mmol/g for Li+. Li0.5Mn1.375O3 is an ion-memory inorganic ion exchanger of Li+. It had a memorial ion-sieve property for Li+.


1972 ◽  
Vol 50 (13) ◽  
pp. 2071-2078 ◽  
Author(s):  
Mohsin Qureshi ◽  
K. G. Varshney ◽  
S. K. Kabiruddin

A new, thermally stable, and highly strontium-specific inorganic ion exchanger, titanium(IV) vanadate, has been prepared by mixing 0.5 M solution of titanic chloride and sodium vanadate at pH 0–1. Its ion exchange capacity is 0.65 mequiv./g at 400 °C. Separation factors of Sr2+ with respect to Ba2+, Ca2+, and Mg2+ are 8, 11.8, and 33.3, respectively. Binary mixtures of Sr2+ with Ba2+, Ca2+, and Mg2+ have been separated. Calcium and magnesium are eluted with 0.001 M HNO3. Barium and strontium are eluted with 0.01 and 0.1 M HNO3, respectively. A new parameter ΔC/ΔT is proposed for the study of structural changes in inorganic ion exchangers.


1990 ◽  
Vol 68 (2) ◽  
pp. 346-349 ◽  
Author(s):  
K. V. Surendra Nath ◽  
S. N. Tandon

A new crystalline layered inorganic ion exchanger tin(IV) arsenophosphate with the formula Sn(HAsO4)(HPO4)•H2O has been prepared by refluxing the amorphous precursor. This exchanger has been characterized by X-ray powder pattern, chemical analysis, IR spectra, and thermal dehydration. Its ion exchange behaviour towards sodium ions is reported. The exchanger has an exchange capacity of 5.36 mequiv./g for Na+. The performance of tin(IV) arsenophosphate is compared with crystalline tin(IV) phosphate and arsenate. Keywords: cation exchanger, crystalline tin(IV) arsenophosphate, ion exchange, thermal behaviour, X-ray studies.


2009 ◽  
Vol 27 (4) ◽  
pp. 423-434 ◽  
Author(s):  
S.A. Nabi ◽  
Mu. Naushad ◽  
Rani Bushra

EDTA–zirconium phosphate has been synthesized as a new amorphous hybrid cation-exchanger by the combination of the inorganic ion-exchanger zirconium phosphate and EDTA, thereby providing a new class of organic–inorganic hybrid ion-exchanger with better mechanical and granular properties, a good ion-exchange capacity (2.40 mequiv/g dry exchanger for Na+), good reproducibility, and a higher stability and selectivity towards heavy metal ions. It has been characterized using FT-IR, TGA/DTA, X-ray and SEM methods, in addition to ion-exchange studies such as the determination of its ion-exchange capacity, elution and distribution behaviour, to provide a better understanding of the ion-exchange behaviour of the material. On the basis of distribution studies, the material was found to be highly selective towards Th(IV) and its selectivity was examined by achieving some important binary separations such as Cd(II)–Th(IV), Ni(II)–Th(IV), Hg(II)–Th(IV), Zn(II)–Th(IV), Pb(II)–Th(IV) and Al(III)–Th(IV) by column means, indicating its utility in environmental pollution control in one way or other.


2012 ◽  
Vol 457-458 ◽  
pp. 34-37
Author(s):  
Heng Li

New complex inorganic ion exchanger Li2TiO3 was synthesized. The ion exchange behavior of Li2TiO3 has been studied in detail. Results of column test indicated, that the exchange capacity obtained from tests for Li+ in 0.1mol /L HNO3 solution is 10.1mmol/g.


2013 ◽  
Vol 842 ◽  
pp. 263-266
Author(s):  
Jin He Jiang

[LiMn1.25O3] was prepared by a solid state reaction crystallization method. And it was a spinel-type metal compound. The solid state reaction with this material was investigation by X-ray, saturation capacity of exchange, and Kd measurement. The results showed that the Li+ extraction/insertion be progressed mainly by an ion-exchange mechanism. The acid treated samples had an ion exchange capacity of 4.0mmol/g for Li+.


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