Rhodium complexes of the water-soluble phosphine Ph2PCH2CH2NMe3+. Their complexes with hydride, olefin, and carbon monoxide ligands. Their use as olefin hydrogenation and hydroformylation catalysts in aqueous solution and in aqueous/organic solvent two-phase systems, and adsorbed on a cation-exchange resin

1983 ◽  
Vol 2 (9) ◽  
pp. 1138-1144 ◽  
Author(s):  
Richard T. Smith ◽  
R. Kurt Ungar ◽  
Laura J. Sanderson ◽  
Michael C. Baird
Keyword(s):  
Aqueous Solution ◽  
Carbon Monoxide ◽  
Organic Solvent ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Water Soluble ◽  
Rhodium Complexes ◽  
Two Phase ◽  
Water Soluble Phosphine ◽  
Phase Systems

The synthesis of water-soluble polymers of β-cyclodextrin and their use in aqueous two-phase systems

1989 ◽  
Vol 10 (3) ◽  
pp. 183-188 ◽  
Author(s):  
Björn Ekberg ◽  
Börje Sellergren ◽  
Lisabeth Olsson ◽  
Klaus Mosbach
Keyword(s):  
Water Soluble ◽  
Two Phase ◽  
Water Soluble Polymers ◽  
Soluble Polymers ◽  
Aqueous Two Phase Systems ◽  
Phase Systems

Ion Exchange Method for Rapid Determination of Alkalinity of Water-Soluble Tea Ash Containing High Levels of Manganese

1980 ◽  
Vol 63 (3) ◽  
pp. 460-461
Author(s):  
Saidul Z Qureshi ◽  
Fadhil M Najib ◽  
Fahmi A Mohammed
Keyword(s):  
Ion Exchange ◽  
Cation Exchange ◽  
Exchange Resin ◽  
Rapid Determination ◽  
Cation Exchange Resin ◽  
Water Soluble ◽  
Exchange Method ◽  
Strong Cation Exchange ◽  
Ion Exchange Method

Abstract An ion exchange method to determine the alkalinity of water-soluble tea ash containing high levels of manganese is described. A chromatographic column containing a strong cation exchange resin (20–50 mesh) in Na+ form, with a bed volume of 5 mL is used. The present ion exchange method is compared to pH titrations and also to the official AOAC methods (31.012, 31.015, 31.016). Results with the new method are accurate and precise.

The diffusion of electrolytes in a cation-exchange resin membrane I. Theoretical

1955 ◽  
Vol 232 (1191) ◽  
pp. 498-509 ◽  
Keyword(s):  
Aqueous Solution ◽  
Activity Coefficient ◽  
Cation Exchange ◽  
Exchange Resin ◽  
Volume Fraction ◽  
Cation Exchange Resin ◽  
Physical Nature ◽  
Concentration Difference ◽  
Flow Through ◽  
Resin Membrane

An equation for the flux of electrolyte through a water-swollen cation-exchange resin membrane separating two solutions of the same electrolyte at different concentrations is derived on the basis of several assumptions regarding the physical nature of a swollen resinous exchanger. The complete flux equation contains three terms, one determined by the concentration difference across the membrane, another determined by the variation of the activity coefficient of the electrolyte with concentration in the membrane and a third concerned with the rate of osmotic or hydrostatic flow through the membrane. If ions in the resin are transported entirely in an internal aqueous phase, the mobilities required for the flux equation can be related to mobilities in aqueous solution and to the volume fraction of resin in the swollen membrane. The treatment is readily extended to anion exchangers.

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