Accession Number : AD0377082
Title : SYNTHESIS OF LMH-2.
Descriptive Note : Quarterly progress rept. no. 3, 4 Jul-3 Oct 66,
Corporate Author : UNITED STATES INDUSTRIAL CHEMICALS CO CINCINNATI OHIO
Personal Author(s) : Murib,Jawad H.
Report Date : OCT 1966
Pagination or Media Count : 13
Abstract : Disproportionation of CBH under vacuum gave purities up to 88 wt.% BeH2 with conversions up to 91% based on the amount of ether evolved on disproportionation. Residual chloride and ether continued to contaminate the final product. Complete removal of these impurities remains to be accomplished. The disproportionation in dimethyl sulfide gave beryllium hydride in purities up to 90 wt.% BeH2 with about 1.0 wt.% Cl. However, the conversion was only 16% based on initial CBH. Convenient methods for the purification of beryllium chloride were developed which permit utilization of low cost BeCl2 for the preparation of CBH. These involve (a) sublimation of BeCl2:OEt2 at 74-76 C leaving the impurities as involatile residue, and (b) removal of beryllium-oxide species by precipitation in diethyl ether solvent. (Author)
Descriptors : (*METALS, *HYDRIDES), SYNTHESIS(CHEMISTRY), CATALYSTS (U) *BERYLLIUM, *SOLID ROCKET PROPELLANTS, CHLORIDES, DISTILLATION, SUBLIMATION, OXIDES, DISPROPORTIONATION, VACUUM, ORGANIC SULFUR COMPOUNDS, AROMATIC COMPOUNDS, TOLUENES, IONS, LITHIUM COMPOUNDS, ALUMINUM COMPOUNDS, CHEMICAL PRECIPITATION, SODIUM COMPOUNDS, ETHERS, NITROGEN, SOLVENTS
Subject Categories : Solid Rocket Propellants
Distribution Statement : APPROVED FOR PUBLIC RELEASE