ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Spectrochemical Investigation of the Stability of Calcium Monohalogenides

M. Herkeľová

Institute of Inorganic Chemistry, Slovak Academy of Sciences, Bratislava 9

Abstract: A new spectrochemical method of the relative stability evaluation of monohalogenides of the I I . major subgroup of periodic system was developed using the relative intensities of the CaF, CaCl, CaBr, and Ca I band edges. The investigation was carried out with an intermittent alternating current arc of 25 c/s which provides the plasma of discharge with a continuous supply of individual halogenides. On the basis of the results obtained from the band spectra of corresponding monohalogenides it may be concluded that a certain equilibrium becomes established with respect to individual monohalogenides in plasma which can be expressed by the relative intensities of individual band edges. These intensities exhibit a decreasing tendency in the sequence CaF→  CaCl →  CaBr → Cal. On the basis of this phenomenon a decreasing stability in this series of monohalogenides may be assumed.

Full paper in Portable Document Format: 266a502.pdf

Chemical Papers 26 (6) 502–506 (1972)