Accession Number:

AD0368648

Title:

HIGH ENERGY PROPELLANT INGREDIENT RESEARCH.

Descriptive Note:

Quarterly progress rept. no. 3, 1 Sep-30 Nov 65,

Corporate Author:

OLIN MATHIESON CHEMICAL CORP NEW HAVEN CONN CHEMICALS DIV

Report Date:

1965-12-31

Pagination or Media Count:

31.0

Abstract:

A number of aluminum hydride samples have exhibited marked improvement as a result of aging at ambient temperature or a water treatment. One aged sample 2.5 yr. prepared by the NaAlH4 route was found to be the most stable Oland 58 product tested to date. Treatments of freshly prepared aluminum hydride samples with water have also resulted in significant improvements in thermal stability. Bayerite beta alumina trihydrate has been detected by rays on several aged samples and on most water-treated samples. The improvement in thermal stability of some aged samples may be due to factors other than the formation of bayerite, however. No major differences were observed in thermal stabilities of Olane 58 products prepared from the solid LiAlH4 both pure and impure addition route. Direct crystallization of unsolvated aluminum hydride was demonstrated from a 31 toluene-ether system. Although the data from the DSC Differential Scanning Calorimetry scans. Both programmed and isothermal, provided some insights into the thermal character of aluminum hydride samples, no meaningful correlations to Talinani tests at 60 and 100 C could be made for decompositions as low as 1 percent. Conductivity studies of the LiAlH4-AlCl3 reaction in ether-toluene 11 under a variety of conditions confirm the existence of a maximum in the curve at 21 molar ratios of LiAlH4AlH3. Author

Subject Categories:

  • Solid Rocket Propellants

Distribution Statement:

APPROVED FOR PUBLIC RELEASE