Re-Evaluation of the Thermodynamic Activity Quantities in Aqueous Lithium Chloride Solutions at 25 °C up to a Molality of 6.0 mol·kg−1

2009 ◽  
Vol 54 (3) ◽  
pp. 882-889 ◽  
Author(s):  
Jaakko I. Partanen
Keyword(s):  
Lithium Chloride ◽  
Thermodynamic Activity ◽  
Chloride Solutions

ISOLATION AND STRUCTURE OF URIDINE NUCLEOTIDE-PEPTIDES FROM AEROBACTER CLOACAE NRC 492

1963 ◽  
Vol 41 (1) ◽  
pp. 1065-1072 ◽  
Author(s):  
R. A. Anwar ◽  
C. Roy ◽  
R. W. Watson
Keyword(s):  
Lactic Acid ◽  
Amino Acid ◽  
Lithium Chloride ◽  
Paper Chromatography ◽  
High Voltage ◽  
Chloride Solutions ◽  
Uridine Nucleotide ◽  
Ethanol Extracts ◽  
Dowex 1 ◽  
High Voltage Electrophoresis

Four closely related uridine nucleotide-peptides isolated from ethanol extracts of penicillin-treated Aerobacter cloacae NRC 492 have been partially characterized. Fractionation of dialyzed extracts on Dowex-1-Cl columns with aqueous lithium chloride solutions, precipitation of the nucleotide-peptides with methanol–acetone, and further separation by paper chromatography and high voltage electrophoresis yielded (a) UDP-GNAc-lact.L-ala.D-glu.meso-dap.D-ala,* (b) UDP-GNAc-lact.L-ala.D-glu.meso-dap, (c) UDP-GNAc-lact.L-ala.D-glu., and (d) UDP-GNAc-lactic acid. The amino acid isomers were identified by micro-enzymic and chromatographic methods.

Fractionation of Hydrogen Isotopes in Aqueous Lithium Chloride Solutions

1988 ◽  
Vol 43 (5) ◽  
pp. 449-453 ◽  
Author(s):  
Masahisa Kakiuchi
Keyword(s):  
Oxygen Isotope ◽  
Isotope Effect ◽  
Lithium Chloride ◽  
Structural Changes ◽  
Platinum Catalyst ◽  
Pure Water ◽  
Free Water ◽  
Hydrogen Gas ◽  
Water Molecules ◽  
Chloride Solutions

The D/H ratio of hydrogen gas in equilibrium with water vapor over aqueous lithium chloride solutions was measured at 25 °C, using a hydrophobic platinum catalyst. Experimental details are described. The hydrogen isotope effect between the solution and pure water depends linearly on the LiCl concentration up to ca. 12 m, and at higher concentrations a marked deviation from linearity takes place, as was also observed for the oxygen isotope effect measured by Bopp et al. On the basis of these hydrogen and oxygen isotope effects it is concluded that H218O is enriched in the water molecules coordinated to Li+ ions and HD16O is enriched in the free water molecules of the solution. The observed deviation from linearity for concentrations higher than ca. 12m is interpreted in terms of structural changes in the hydration sphere of the Li+ ions.

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