Abstract

A method is presented for calculating the equilibrium composition in a flame system. The method utilizes a computer program based on the minimization of free energy in the model system. Calculations were made of β values (the free-atom fraction) for 17 elements in the nitrous oxide/acetylene flame and for 15 elements in the air/acetylene flame. Special investigations were made with aluminum in the nitrous oxide/acetylene flame to study the effects of varying flame stoichiometry, matrix elements, and ion formation on the equilibrium composition of the flame system. Applications of the method are discussed.

Atomic Absorption Spectroscopy with High Temperature Flames

J. B. Willis
Appl. Opt. 7(7) 1295-1304 (1968)

Nitrous Oxide Supported Flames for Atomic Absorption Spectroscopy

L. R. P. Butler and Anne Fulton
Appl. Opt. 7(10) 2131-2137 (1968)

The Application of Separated Flames in Analytical Flame Spectroscopy

G. F. Kirkbright and T. S. West
Appl. Opt. 7(7) 1305-1311 (1968)

Determining the effect of species composition on temperature fields of tank flames using real-time holographic interferometry

Markus Gawlowski, Kerry E. Kelly, Laurie A. Marcotte, and Axel Schönbucher
Appl. Opt. 48(23) 4625-4636 (2009)

Atomic Emission Characteristics of a Premixed Acetylene–Nitrous Oxide, Total Consumption Flame

Victor G. Mossotti and Marjorie Duggan
Appl. Opt. 7(7) 1325-1330 (1968)