Concentrations Of CS2 Research Articles

Identification of the Ionic Species in a Cesium Plasma Diode

The identification of the dominant ionic species in the cesium plasma diode has been established experimentally as the atomic ion, Cs+, instead of the molecular ion, Cs2+. Values of the atomic ion density, Ni, have been determined spectrographically by measurements of the radiative recombination spectrum leading to the 6P state. Electron densities, Ne, were measured independently by the Stark broadening of selected cesium lines. Within experimental uncertainty for a broad range of diode operating conditions, Ni=Ne. Thus, not only are Cs+ ions directly observed, but any important concentrations of Cs2+ would violate plasma neutrality. The experimental results are consistent with the existence of local thermodynamic equilibrium.

The Effect of Some Gases on the Tracheal Ventilation of Grasshoppers1

CO2, CS2, HCN and Nicotine in certain concentrations increased the volume of air inhaled into the tracheal system by the respiratory movements of the grasshoppers that were studied. Minimum lethal concentrations of HCN and CS2 temporarily increased the tracheal ventilation, but this was followed by a gradual decrease as the insect became less and less active.