Accession Number : AD0488068

Title :   METHODS FOR ELIMINATION OF CORROSION PRODUCTS OF NITROGEN TETROXIDE.

Descriptive Note : Quarterly progress rept. no. 1, 1 May-31 Jul 66,

Corporate Author : ROCKETDYNE CANOGA PARK CA CHEMISTRY SECTION

Personal Author(s) : Axworthy, A. ; Gerhauser, J. ; Fujikawa, C. ; Rodriquez, S.

Report Date : AUG 1966

Pagination or Media Count : 23

Abstract : A 12-month program has been initiated to ascertain methods for the elimination of the corrosion products in N2O4 (iron-nitrate-containing species) which are responsible for the phenomenon of 'flow decay.' Flow decay is the term which has been given to the gradual reduction in N2O4 flowrate which occurs under certain conditions. It has been shown previously that this reduced flow results from the deposition of solvated iron nitrate at an orifice. The exact structures of the iron species which can form in N2O4 are being determined and the kinetics and mechanisms of their formation are being studied. Nuclear magnetic resonance spectroscopy studies are in progress and electron resonance spectroscopy studies are planned. Compounds of the type Fe(NO3)3.xN2O4 have been synthesized and purified. A purified anhydrous solid material having the empirical formula Fe(NO3)3.19.1.03N2O4 has been found to match the flow-decay solid deposit in certain properties. Preliminary experiments have indicated three possible candidate coordinating agents for further investigation in flow-decay compound elimination. (Author)

Descriptors :   *TETROXIDES), (*NITROGEN COMPOUNDS, (*CORROSION INHIBITION, REACTION KINETICS), IDENTIFICATION, SOLUBILITY, IRON COMPOUNDS, NITRATES.

Subject Categories : Inorganic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE