THE FLAME CHEMISTRY OF ALKALI AND ALKALINE EARTH METALS

1992 ◽  
pp. 529-571 ◽  
Author(s):  
Keith Schofield
Keyword(s):  
Alkaline Earth ◽  
Alkaline Earth Metals ◽  
Flame Chemistry

Alkaline earth flame chemistry

1978 ◽  
Vol 364 (1719) ◽  
pp. 509-535 ◽  
Keyword(s):  
Chemical Reactions ◽  
Atmospheric Pressure ◽  
Alkaline Earth ◽  
Alkaline Earth Metals ◽  
Thermochemical Data ◽  
Photometric Measurements ◽  
Flame Chemistry ◽  
Non Equilibrium

Results of photometric measurements on fuel-rich, atmospheric-pressure, laminar, premixed H 2 + O 2 + N 2 flames with and without small proportions of added calcium, strontium and barium are reported. These results, together with earlier observations on alkaline earth metals E in flames, are interpreted in terms of a set of chemical reactions involving the gasphase additive species E, EO, EOH, E(OH) 2 , EOH + and E + and the flame species H, OH, H 2 and H 2 O. The interpretation offered differs somewhat from those of previous workers, particularly with regard to the significance of non-equilibrium effects, but nevertheless provides an overall description of alkaline earth flame chemistry consistent with all available observations. Thermochemical data are tabulated for key reactions.

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