Phosphorus in the burnt gas from fuel-rich hydrogenoxygen flames

✍ Scribed by C.P. Fenimore; G.W. Jones

• Publisher: Elsevier Science
• Year: 1964
• Tongue: English
• Weight: 324 KB
• Volume: 8
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(64)90039-2

✦ Synopsis

Green bands, attributed to HP0 by Lain Thanh My and Peyron, are emitted from the burnt gas o] [uel-rich flames containing a trace of trimethyl phosphate, but not [rom lean flames. Their intensity is proportional to [phosphorus]O.l+o.1 [HI 2 [H20~'~_+°',~ [H,jJ o+_,,.~ exp {--(5+5) kcal/RT} where [phosphorus] represents the addition of trimethyl phosphate. The dependence on [H]2 is good to the nearest integral power. The uncertainty by the [actor {[H=,O]/CH ]} °'s reflects the small change in this quantity in most o[ the experiments. An interpretation is Offered which is consistent with the identification o[ the emitter as HPO: that the flame intensity is proportional to [H] [PO], and that the phosphorus is present mostly as P=, molecules which are equilibrated according to: P2+O :P +PO P +OH~PO+H

The flame result can also be interpreted by an intensity proportional to [H] [P~ with the same equilibria among P'2" PO and P. On either interpretation, the phosphorus must be considered to be mainly present as P2 molecules.