Yc. Zhang et al., INTERACTION OF IRON-OXIDE WITH BARIUM PEROXIDE AND HYDROXIDE DURING THE DECOMPOSITION OF SODIUM-CHLORATE, Industrial & engineering chemistry research, 36(5), 1997, pp. 1948-1952
Decomposition of sodium chlorate catalyzed by iron oxide in the presen
ce of barium peroxide and hydroxide is studied by thermogravimetric an
alysis. Barium peroxide and hydroxide are moderately active catalysts
by themselves but are inhibitors when used together with iron oxide. A
loading of 1% barium peroxide or hydroxide can significantly reduce t
he activity of the iron oxide and raise the decomposition temperature
of sodium chlorate. The inhibiting effect decreases with increased loa
ding of the barium compounds due to the formation of barium ferrate. c
atalytic activity change of the iron oxide in the presence of barium p
eroxide and hydroxide is discussed based on the electron configuration
change of the iron ions.