Accession Number : AD0800928

Title :   STORABLE CONCENTRATED HYDROGEN PEROXIDE.

Descriptive Note : Quarterly progress rept. no. 2, 1 Jun-31 Aug 66,

Corporate Author : SHELL DEVELOPMENT CO EMERYVILLE CA

Personal Author(s) : Monger, James M.

Report Date : OCT 1966

Pagination or Media Count : 6

Abstract : Investigation of means for reducing the rate of decomposition of concentrated HP by removing the catalytic elements carried in the HP and by reducing the catalytic activity of the various materials of construction for use as containers has been continued. For aluminum alloys various chemical treatments have not surpassed the caustic-nitric acid - hot concentrated HP sequence in achieving minimum surface activity. For stainless steel alloys only minor changes in surface activity have been achieved by chemical pretreatment. For both types of alloys the chemical composition is a primary factor governing surface activity. Various combinations of inorganic ion-exchange media have not proved to be more effective than beta-stannic acid alone in reducing the decomposition rate of the treated HP. Evaluation of HP-90 which had been treated by beta-stannic acid bed and stored in aluminum for approximately 1 year showed the HP to have about 1/3 the decomposition rate of the untreated feedstock. Activities of tin surfaces electroplated onto aluminum have been shown to be several times higher than the best tin surface or the best passivated aluminum surface. (Author)

Descriptors :   (*HYDROGEN PEROXIDE, STABILIZATION), (*STORAGE TANKS, HYDROGEN PEROXIDE), STAINLESS STEEL, ALUMINUM ALLOYS, DECOMPOSITION, TIN COMPOUNDS, ACIDS, SURFACE PROPERTIES, TIN COATINGS, ION EXCHANGE, REACTION KINETICS.

Subject Categories : Liquid Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE