Accession Number : AD0619492

Title :   TRACE SPECIES IN COMBUSTION GASES. THE FORMATION OF SODIUM METABORATE.

Descriptive Note : Final technical rept. for 15 Oct 63-14 Oct 64,

Corporate Author : THIOKOL CHEMICAL CORP DENVILLE N J REACTION MOTORS DIV

Personal Author(s) : Fleischer,David

Report Date : NOV 1964

Pagination or Media Count : 51

Abstract : The equilibrium constant for the reaction NaCl(g) + HBO2(g) = NaBO2(g) + HCl(g) is determined to be, Kp = 2.50 (1980K). Sodium vapor and boron trichloride (BCl3) are reacted in a hydrocarbon-air flame contained in a tunnel burner. Conditions are such that the concentrations of HBO2 and HCl are equal to the total flows of boron and chlorine. The concentration of unreacted sodium is found by line absorption, using an experimentally determined absorption coefficient. The relative contribution of NaCl and NaBO2 to the chemically combined sodium concentration can be assessed by removing the direction proportionality between chlorine and boron flows. This is done by adding chlorine, beyond that present in the BCl3. The H-atom concentration is also required, and is inferred from the intensity of the 2-pi to 2&(0,0) OH-band. (Author)

Descriptors :   (*COMBUSTION PRODUCTS, CHEMICAL PROPERTIES), (*EXHAUST GASES, CHEMICAL PROPERTIES), (*SODIUM COMPOUNDS, BORATES), BORON COMPOUNDS, CHLORIDES, HYDROCHLORIC ACID, BORIC ACID, ABSORPTION SPECTRA, LINE SPECTRA, CHEMICAL EQUILIBRIUM, REACTION KINETICS

Distribution Statement : APPROVED FOR PUBLIC RELEASE