Abstract: A new oscillatory system has been investigated by the quadripole mass-spectrometer. It is recognized that nature of this gas-liquid two phase system is of a physical one.
For a propylene-butyl aldehyde or benzene mixture the oscillation of the concentration of propylene in the gas phase can be maintained in a certain region of pressure. The experimental work has shown that the oscillatory behavior of the releasing process of the dissolved gas requests a threshold on its flow rate and is sensitive to the change of temperature. The pressure and the stiring condition are not the origin of this oscillatory phenomenon, though they really change the period and the amplitude of the oscillation. The synthetic gas, added into this system, will play a “concert” role in their concentration oscillation, but the oscillatory directions of the concentrations of hydrogen and carbonmonoxide are opposite to that of propylene.
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