Studies About the Separation of Molecular Species of Hydrogen’s Isotopes by Cryogenic Distillation in a Plant for Heavy Water Detritiation

1998 ◽  
pp. 557-562 ◽  
Author(s):  
I. Cristescu ◽  
Ioana Cristescu ◽  
M. Peculea
Keyword(s):  
Heavy Water ◽  
Molecular Species ◽  
Cryogenic Distillation

Full-Scale Experimental Facility for the Development Technologies for the Reprocessing of Tritium Contaminated Light and Heavy Water Wastes by CECE Process and Cryogenic Distillation

1995 ◽  
Vol 28 (3P1) ◽  
pp. 767-771 ◽  
Author(s):  
Veniamin D. Trenin ◽  
Tatiana V. Vasyanina ◽  
Ivan A. Alekseev ◽  
Kir A. Konoplev ◽  
Sergey P. Karpov ◽  
...  
Keyword(s):  
Heavy Water ◽  
Full Scale ◽  
Experimental Facility ◽  
Cryogenic Distillation

Calculation of Equilibrium Constant for Dimerization of Heavy Water Molecules in Saturated Vapor

2015 ◽  
Vol 60 (3) ◽  
pp. 263-267
Author(s):  
L.A. Bulavin ◽  
◽  
S.V. Khrapatyi ◽  
V.M. Makhlaichuk ◽  
Keyword(s):  
Equilibrium Constant ◽  
Heavy Water ◽  
Saturated Vapor ◽  
Water Molecules

Carbon-13 and nitrogen-14 NMR spectra of 1-(substituted phenyl)pyridinium salts

1980 ◽  
Vol 45 (10) ◽  
pp. 2766-2771 ◽  
Author(s):  
Antonín Lyčka
Keyword(s):  
Heavy Water ◽  
Nmr Spectra ◽  
Chemical Shifts ◽  
Coupling Constants ◽  
Pyridinium Salts ◽  
Nmr Signals ◽  
C Nmr

The 13C and 14N NMR spectra of 1M solutions of 1-(substituted phenyl)pyridinium salts (4-CH3, 4-OCH3, H, 4-Cl, 4-Br, 4-I, 3-NO2, 4-NO2, 2,4-(NO2)2 (the 13C NMR only)) have been measured in heavy water at 30 °C. The 13C and 14N chemical shifts, the 1J(CH) coupling constants, some 3J(CH) coupling constants, and values of half-widths Δ 1/2 of the 14N NMR signals are given. The 13C chemical shifts of C(4) correlate with the σ0 constants (δC(4) = (1.79 ± 0.097) σ0 + (147.67 ± 0.041)), whereas no correlation of the nitrogen chemical shifts with the σ constants has been found. The half-widths Δ 1/2 correlate with the σ0 constants (Δ 1/2 = (76.2 ± 4.9) σ0 + (106.4 ± 2.2)) except for 1-phenylpyridinium chloride.

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