Competitive and noncompetitive electron capture of nitrous oxide with sulfur hexafluoride and electron thermalization in the gas-phase radiolysis of xenon

1974 ◽  
Vol 78 (10) ◽  
pp. 954-958 ◽  
Author(s):  
Yoshihiko Hatano ◽  
Hiroshi Shimamori
Keyword(s):  
Nitrous Oxide ◽  
Gas Phase ◽  
Electron Capture ◽  
Sulfur Hexafluoride

scholarly journals Effect of net gas volume changes on alveolar and arterial gas partial pressures in the presence of ventilation-perfusion mismatch

2019 ◽  
Vol 126 (3) ◽  
pp. 558-568 ◽  
Author(s):  
Ben Korman ◽  
Ranjan K. Dash ◽  
Philip J. Peyton
Keyword(s):  
Nitrous Oxide ◽  
Steady State ◽  
Partial Pressure ◽  
Gas Phase ◽  
Pressure Difference ◽  
Sulfur Hexafluoride ◽  
Volatile Anesthetic ◽  
State Equations ◽  
Arterial Partial Pressure ◽  
Gas Volume

The second gas effect (SGE) occurs when nitrous oxide enhances the uptake of volatile anesthetics administered simultaneously. Recent work shows that the SGE is greater in blood than in the gas phase, that this is due to ventilation-perfusion mismatch, that as mismatch increases, the SGE increases in blood but is diminished in the gas phase, and that these effects persist well into the period of nitrous oxide maintenance anesthesia. These modifications of the SGE are most pronounced with the low soluble agents in current use. We investigate further the effect of net gas volume loss during nitrous oxide uptake on low concentrations of other gases present using partial pressure-solubility diagrams. The steady-state equations of gas exchange were solved assuming a log-normal distribution of ventilation-perfusion ratios using Lebesgue-Stieltjes integration. It was shown that under these conditions the classical partial pressure-solubility diagram must be modified, that for currently used volatile anesthetic agents the alveolar-arterial partial pressure difference is less than that predicted in the past, and that the alveolar-arterial partial pressure difference may even be reversed during uptake in the case of highly insoluble gases such as sulfur hexafluoride. Comparing this with the situation described previously for nitrogen in steady-state air breathing, we show that for nitrogen, the direction of the alveolar-arterial gradient is opposite to the direction of net gas volume movement. Although gas uptake with ventilation-perfusion inequality exceeding that when matching is optimal is shown to be possible, it is less likely than alveolar-arterial partial pressure reversal. NEW & NOTEWORTHY Net uptake of gases administered with nitrous oxide may proceed against an alveolar-arterial partial pressure gradient. The alveolar-arterial gradient for nitrogen in the steady-state breathing air depends not only on the existence of a distribution of ventilation-perfusion ratios in the lung but also on the presence of a net change in gas volume and is opposite in direction to the direction of net gas volume uptake.

scholarly journals COHERENT SYNCHRONIZATION OF PYRIDINE DIMERIZATION REACTIONS AND DECOMPOSITION OF “GREEN OXIDANTS” – H2O2 AND N2O

2021 ◽  
Vol 0 (4) ◽  
pp. 6-11
Author(s):  
I.T. Nagieva ◽  
◽  
N.I. Ali-zadeh ◽  
T.М. Nagiev ◽  
◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Nitrous Oxide ◽  
Gas Phase ◽  
Atmospheric Pressure ◽  
Raw Materials ◽  
Oxidizing Agent ◽  
Optimal Conditions ◽  
Pyridine Bases ◽  
Pharmaceutical Industries ◽  
Oxidation By Hydrogen Peroxide

In recent years, hydrogen peroxide and nitrous oxide (1) "green oxidants" – have attracted much attention of researchers as a selective oxidizing agent for the catalytic oxidation of pyridine bases. In this regard, the reaction of pyridine oxidation by hydrogen peroxide and nitrous oxide under homogeneous conditions, in the gas phase, without the use of catalysts, at atmospheric pressure, has been experimentally investigated. Areas of selective oxidation of pyridine with hydrogen peroxide and nitrous oxide have been established, and optimal conditions have been found for obtaining valuable raw materials required in the petrochemical, chemical, and pharmaceutical industries

Moisture effects on gas-phase biofilter ammonia removal efficiency, nitrous oxide generation, and microbial communities

2014 ◽  
Vol 271 ◽  
pp. 292-301 ◽  
Author(s):  
Liangcheng Yang ◽  
Angela D. Kent ◽  
Xinlei Wang ◽  
Ted L. Funk ◽  
Richard S. Gates ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Microbial Communities ◽  
Gas Phase ◽  
Removal Efficiency ◽  
Ammonia Removal ◽  
Moisture Effects

ChemInform Abstract: GAS PHASE REACTIONS OF ANIONS WITH NITROUS OXIDE AND CARBON DIOXIDE

1977 ◽  
Vol 8 (47) ◽  
pp. no-no
Author(s):  
V. M. BIERBAUM ◽  
C. H. DEPUY ◽  
R. H. SHAPIRO
Keyword(s):  
Carbon Dioxide ◽  
Nitrous Oxide ◽  
Gas Phase ◽  
Gas Phase Reactions

Gas-Phase Oxidation and Nitration of First-, Second-, and Third-Row Atomic Cations in Reactions with Nitrous Oxide:  Periodicities in Reactivity

2004 ◽  
Vol 108 (26) ◽  
pp. 5610-5624 ◽  
Author(s):  
Vitali V. Lavrov ◽  
Voislav Blagojevic ◽  
Gregory K. Koyanagi ◽  
Galina Orlova ◽  
Diethard K. Bohme
Keyword(s):  
Nitrous Oxide ◽  
Gas Phase ◽  
Phase Oxidation ◽  
Gas Phase Oxidation

scholarly journals Structural isomers and low-lying electronic states of gas-phase M+(N2O)n (M = Co, Rh, Ir) ion–molecule complexes

2019 ◽  
Vol 21 (26) ◽  
pp. 13959-13967 ◽  
Author(s):  
Ethan M. Cunningham ◽  
Alexander S. Gentleman ◽  
Peter W. Beardsmore ◽  
Stuart R. Mackenzie
Keyword(s):  
Density Functional Theory ◽  
Nitrous Oxide ◽  
Gas Phase ◽  
Density Functional ◽  
Electronic States ◽  
Structural Isomers ◽  
Functional Theory ◽  
Phase Group ◽  
Ion Molecule Complexes ◽  
Metal Ligand

The structures of gas-phase group nine cation–nitrous oxide metal–ligand complexes, M+(N2O)n (M = Co, Rh, Ir; n = 2–7) have been determined by a combination of infrared photodissociation spectroscopy and density functional theory.

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