Hydrogen isotope effects in the dehydration of polystyrene-divinylbenzene type ion-exchange resins and the structure of electrolyte solutions. 1. Li/sup +/ form of variously cross-linked Dowex 50W resins

Journal Article · Thu Aug 05 00:00:00 EDT 1982 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100213a036· OSTI ID:6497603

Gupta, A R; Nandan, D; Sarpal, S K

Hydrogen isotope effects in the dehydration of the lithium form of strong acid polystyrene-divinylbenzene type ion exchangers (Dowex 50W) of varying cross-linking (2 to 12% DVB content) have been determined by a Rayleigh distillation type technique. The single-stage separation factors, ..cap alpha.., were dependent only on n/sub w/ and were independent of resin cross-linking. At n/sub w/ approx. = 4, ..cap alpha.. was lower than ..cap alpha../sub w/, the separation factor for pure water distillation at the same temperature. In the region of n/sub w/ = 10 to 12, ..cap alpha.. was greater than ..cap alpha../sub w/ and reached a maximum value. Beyond n/sub w/ approx. = 12, ..cap alpha.. decreased gradually with n/sub w/ but remained greater than ..cap alpha../sub w/. These results have been interpreted in terms of the hydration of lithium ions in the resin phase. These data indicate that the counterions in resin phase water behave like single ion solutions, provided counterion-water interactions are much greater than counterion-ionogenic group interactions. The resin network seems to influence the outermost layers (beyond the second hydration shell) of water molecules via hydrophobic interactions. 1 figure, 3 tables.

• Research Organization: Bhabha Atomic Research Centre, Trombay, India
• OSTI ID: 6497603
• Journal Information: J. Phys. Chem.; (United States), Vol. 86:16
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
DEUTERIUM
ISOTOPE EFFECTS
LITHIUM COMPLEXES
DEHYDRATION
WATER
DISTILLATION
SORPTION
DEUTERIUM COMPOUNDS
DIVINYLBENZENE
EFFICIENCY
EXPERIMENTAL DATA
ION EXCHANGE
ION EXCHANGE MATERIALS
MASS SPECTRA
POLYSTYRENE
RESINS
SORPTIVE PROPERTIES
AROMATICS
COMPLEXES
DATA
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
MATERIALS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYMERS
POLYOLEFINS
POLYVINYLS
SEPARATION PROCESSES
SPECTRA
STABLE ISOTOPES
SURFACE PROPERTIES
SYNTHETIC MATERIALS
400302* - Organic Chemistry- Isotope Effects- (-1987)