โ Scribed by G. Rotzoll
No coin nor oath required. For personal study only.
The oxidation of benzene has been investigated with a high-temperature alumina flow reactor in the temperature range of 950-1150 K at residence times of ca. 1 ms and pressures of ca. 400 mbar. Analysis of the reaction products at various stages of the reaction was carried out by direct expansion of the reacting gas yielding a molecular beam that was analyzed by a mass spectrometer. Product identification studies were made by comparing the results from the oxidations of C6H, and C6D6. Besides the products found in previous studies a number of new oxygenated intermediate species were identified, namely benzoquinone, cyclopentadienone, acrolein, and a C,H,O species.
In addition, some higher hydrocarbons have been found even a t high oxygen excess. The role of the intermediates within the current ideas of the reaction mechanism is discussed.
๐ SIMILAR VOLUMES
The high-temperature Knudsen effusion method was used to study the vaporization processes and thermodynamic properties of dysprosium trifluoride in the temperature range 1280-1440 K. Data on the partial vapour pressure of DyF, as a function of temperature and the enthalpy of sublimation of DyF, were
The oxidation of propionaldehyde has been investigated in a l-L Pyrex reactor at total pressures of 50-120 torr and temperatures 553-713 K. Detection of reactants and products was principally by molecular beam mass spectrometry, although certain species could only be measured by gas-chromatographic
In a study of sampling, ions have been extracted from a variety of flames and analysed mass spectrometrically. For this, a flame sample was expanded continuously and supersonically into a vacuum, and an ion beam formed for mass analysis. Observations of ion currents for various pressures in the firs