Reaction of atomic hydrogen with tetrafluoroethene

1969 ◽  
Vol 47 (10) ◽  
pp. 1696-1698
Author(s):  
Lei Teng ◽  
W. E. Jones
Keyword(s):  
Electric Discharge ◽  
Discharge Tube ◽  
Atomic Hydrogen ◽  
Hydrogen Atoms

Hydrogen atoms, generated in a Wood's electric discharge tube, were allowed to react with tetrafluoroethene. The products of the reaction were found to be HF, C2F3H, C2H2, C2F2H2, C2F4H2, C2FH3, C2H4, and CHF3. The formation of the products with the exception of HF was studied quantitatively from 30–330 °C.

Preparation of hydrogen atoms in an electric discharge tube

2010 ◽  
Vol 70 (4) ◽  
pp. 361-364 ◽  
Author(s):  
C. Boelhouwer ◽  
J. van Steenis ◽  
H. I. Waterman
Keyword(s):  
Electric Discharge ◽  
Discharge Tube ◽  
Hydrogen Atoms

THE KINETICS OF THE REACTION OF ATOMIC HYDROGEN WITH METHANE

1964 ◽  
Vol 42 (7) ◽  
pp. 1638-1644 ◽  
Author(s):  
J. W. S. Jamieson ◽  
G. R. Brown
Keyword(s):  
Activation Energy ◽  
Electric Discharge ◽  
Atomic Hydrogen ◽  
Flow System ◽  
Steric Factor ◽  
Primary Reaction ◽  
Kcal Mole ◽  
Hydrogen Atoms ◽  
Fast Flow ◽  
Kinetics Of

Reinvestigation of the reaction of hydrogen atoms, produced by electric discharge, with methane in a fast flow system has given an activation energy of 7.4 ± 1.1 kcal/mole and a steric factor of about 10−3 for the primary reaction, H + CH4 → H2 + CH3.

The reaction of atomic hydrogen with methyl cyanide

1970 ◽  
Vol 48 (23) ◽  
pp. 3619-3622 ◽  
Author(s):  
J. W. S. Jamieson ◽  
G. R. Brown ◽  
J. S. Tanner
Keyword(s):  
Kinetic Parameters ◽  
Electric Discharge ◽  
Hydrogen Cyanide ◽  
Atomic Hydrogen ◽  
Hydrogen Atoms ◽  
Flow Rates ◽  
Methyl Cyanide ◽  
Different Temperatures ◽  
A Minor ◽  
Minor Extent

The reaction of hydrogen atoms, produced by electric discharge, with methyl cyanide vapor has been reinvestigated at seven different temperatures between 40 and 507 °C over a range of methyl cyanide flow rates from 2 to 25 μmoles/s. As in the previous limited investigation the products have been found to be hydrogen cyanide, methane, and ethane, but the present results indicate the presence of chain characteristics to a minor extent, propagated by CN. Kinetic parameters for formation of the products have been evaluated, as kHCN = 3.55 × 10−12 e−5816/RT; [Formula: see text]; and [Formula: see text].

scholarly journals On chemical reaction in the electric discharge. I—The chemical effects of impulse discharges

1935 ◽  
Vol 152 (875) ◽  
pp. 158-171 ◽  
Keyword(s):  
Chemical Reaction ◽  
Electric Discharge ◽  
Discharge Tube ◽  
Atomic Hydrogen ◽  
Electric Discharges ◽  
Active Nitrogen ◽  
Atom Concentration ◽  
Chemical Effects ◽  
Spark Gap ◽  
In Series

Although a very large number of studies has been made upon the chemical reactions which can be induced by electric discharges, the effects of controlled condenser sparks appear to have been neglected, with one exception. Wrede has shown that if a large condenser (8 mfd) is charged to a high potential, and then allowed to discharge through a gas at low pressure, a spark gap being inserted in series with the discharge tube proper to increase the breakdown voltage, then hydrogen, oxygen, and nitrogen may be dissociated to the extent of 80, 60, and 40% respectively, the atom concentration being measured upon a most ingenious “diffusion gauge.” The Wrede discharge has been extensively employed by Steiner and his associates in a series of semi-spectroscopic investigations upon active nitrogen and atomic hydrogen, but its use as a means of effecting chemical reaction has not so far received attention.

Kinetics of the Reaction of Atomic Hydrogen with Vinyl Chloride

1971 ◽  
Vol 49 (7) ◽  
pp. 1023-1026
Author(s):  
J. S. Tanner ◽  
J. W. S. Jamieson
Keyword(s):  
Hydrogen Chloride ◽  
Vinyl Chloride ◽  
Electric Discharge ◽  
Atomic Hydrogen ◽  
Reaction Rate ◽  
Hydrogen Atoms ◽  
Specific Reaction Rate ◽  
Flow Rates ◽  
Different Temperatures ◽  
Kinetics Of

The reaction of hydrogen atoms, produced by electric discharge, with vinyl chloride vapor has been studied at four widely different temperatures. Since the maximum yields of HCl at both 328 and 494 °C exceeded the flow rates of atomic hydrogen, the reaction was observed to have limited chain characteristics. The products were hydrogen chloride, ethylene, methane, and ethane. The specific reaction rate for HCl production was found to be about [Formula: see text] and that for production of ethylene plus ethane was found to be about [Formula: see text].

IX. On the electrolysis of gases

1895 ◽  
Vol 58 (347-352) ◽  
pp. 244-257 ◽  
Keyword(s):  
Electric Discharge ◽  
Discharge Tube ◽  
Negative Electrodes

In the experiments described in this paper I have used the spectroscope to detect the decomposition of gases by the electric discharge and the movement of the ions in opposite directions along the discharge-tube. The method consists in sending the electric discharge through a tube so arranged that the spectra close to the positive and negative electrodes can easily be compared; thus the presence or absence of certain ions at these electrodes can be ascertained.

scholarly journals Сечения образования ионов He-=SUP=-+-=/SUP=- в различных электронных состояниях при столкновениях ионов He-=SUP=-2+-=/SUP=- с атомами водорода

2020 ◽  
Vol 90 (6) ◽  
pp. 895
Author(s):  
А.А. Басалаев ◽  
В.В. Кузьмичев ◽  
М.Н. Панов ◽  
О.В. Смирнов
Keyword(s):  
Kinetic Energy ◽  
Electron Capture ◽  
Cross Sections ◽  
Atomic Hydrogen ◽  
Precision Measurements ◽  
Capture Cross ◽  
Hydrogen Atoms ◽  
Hydrogen Target ◽  
Degree Of Dissociation ◽  
Capture Cross Sections

Using collision spectroscopy based on precision measurements of the kinetic energy of projectile ions that capture an electron, we measured the state selective electron capture cross sections of formation of He^+(n) ions at collision 3^He^{2 +} ions with an energy of E = 1.4-10 keV/a.m.u. with hydrogen atoms. The atomic hydrogen target with a degree of dissociation 78% at a temperature of tungsten dissociation cell 2180K has been made.

Photodissociation of H2 near Threshold Energies

1970 ◽  
Vol 25 (2) ◽  
pp. 237-242 ◽  
Author(s):  
F. J. Comes ◽  
U. Wenning
Keyword(s):  
Electric Field ◽  
Cross Section ◽  
Configuration Interaction ◽  
Atomic Hydrogen ◽  
Molecular Hydrogen ◽  
Hydrogen Atoms ◽  
Dissociation Cross Section ◽  
Excited Molecules ◽  
Threshold Energies ◽  
Near Threshold

Abstract Measurements of the atomic hydrogen fluorescence (Lyα) yield important information on the dissociation behavior of molecular hydrogen under photon impact. Under certain assumptions the dissociation cross section of the molecule can be deduced from such experiments. By applying an appropriate electric field in the observation region those dissociations leading to the formation of metastable hydrogen atoms can be quantitatively determined. This information opens the possibility to describe the predissociation of the excited H2-molecules in the C-, D-and B″-states. The experiments show that the excited molecules in these particular states dissociate into H(1S) and H(2S) by configuration interaction with the B′-state.

Stationary inverted Lyman populations and free-free and bound-free emission of lower-energy state hydride ion formed by an exothermic catalytic reaction of atomic hydrogen and certain group I catalysts

Open Physics ◽  
2010 ◽  
Vol 8 (1) ◽  
Author(s):  
Randell Mills ◽  
William Good ◽  
Peter Jansson ◽  
Jiliang He
Keyword(s):  
Catalytic Reaction ◽  
Atomic Hydrogen ◽  
Microwave Plasma ◽  
Energy State ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Hydrogen Atoms ◽  
Hydride Ion ◽  
Group I ◽  
Excess Power

AbstractRb+ to Rb2+ and 2K+ to K + K2+ each provide a reaction with a net enthalpy equal to the potential energy of atomic hydrogen. The presence of these gaseous ions with thermally dissociated hydrogen formed a plasma having strong VUV emission with a stationary inverted Lyman population. Significant Balmer α line broadening of 18 and 9 eV was observed from a rt-plasma of hydrogen with KNO3, and RbNO3, respectively, compared to 3 eV from a hydrogen microwave plasma. The reaction was exothermic since excess power of about 20 mW/cc was measured by Calvet calorimetry. We propose an energetic catalytic reaction involving a resonance energy transfer between hydrogen atoms and Rb+ or 2K+ to form a very stable novel hydride ion. Its predicted binding energy of 3.0471 eV with the fine structure was observed at 4071 Å, and its predicted bound-free hyperfine structure lines matched those observed for about 40 lines to within.01 percent. Characteristic emission from each catalyst was observed. This catalytic reaction may pump a CW HI laser.

scholarly journals An active modification of nitrogen, produced by the electric discharge.—V

1913 ◽  
Vol 88 (605) ◽  
pp. 539-549 ◽  
Keyword(s):  
Electric Discharge ◽  
Discharge Tube ◽  
Good Condition ◽  
Gas Space ◽  
Commercial Nitrogen

Experience has led to certain modifications of detail in preparing nitrogen for the experiments. Commercial nitrogen from cylinders is still used, but instead of passing it over phosphorus it is allowed to stand in contact with it for some hours. The former method does well enough when the phosphorus is freshly cut, but in time the surface deteriorates, owing, in part at least, to the accumulation of oxides of phosphorus, which tend to obstruct access of the gas. Two 15-litre aspirator bottles are arranged as a gasholder in the usual way, the gas being displaced by water. In the gas space is hung up a muslin bag containing chopped phosphorus. On filling the gasholder with commercial nitrogen the phosphorus fumes freely, and all traces of oxygen are removed in the course of two or three hours. The fumes subside, and the gas is ready for use. It merely requires drying on its way to the discharge tube. This 15-litre supply is more than enough for most experiments. When it is used up the water rises and drowns the bag of phosphorus, dissolving out the oxides which have been formed, and leaving it in good condition for use next time.

Sign in / Sign up

Export Citation Format

Share Document