[en] Proprietary beryllium electrorefining technology has been purchased from the KBI Division of Cabot Berylco Inc. by Rockwell International, Rocky Flats Plant, as part of a DOE beryllium option study. This technology has been reviewed and is summarized. 12 figures, 7 tables

[en] The RKRV potential energy curves for the observed electronic states of gaseous monochlorides of beryllium, magnesium and calcium have been constructed using the method of Y B Rao and P Venkateswarlu (1962). The ground state dissociation energy of these molecules has been evaluated by curve fitting technique. (author)

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[en] Experiments on heat conductivity of BeCl², MgCl₂, CaCl₂, SrCl₂, BaCl₂, NaCl and C₄H₉HJ formamide solutions included measurements of heat conductivity coefficient K, cal/cm.secxdegree, equivalent heat conductivity Ksub(e) and apparent heat conduction phisub(k). For all the salts K dependence on concentration was non-linear. Ksub(e) and phisub(k) for infinitely diluted MeCl₂ solutions (Ksub(e)⁰ and phisub(k)⁰) exhibited a linear dependence on the cation atomic number, as in case of MeCl solutions. It is suggested that heat transfer is promoted by ion masses being close to the solvent molecules mass, the size of ions and molecules being less important

[en] X-ray diffraction investigation of the alloys of the nonvariant points of the RbCl-BeCl² system at room temperature is made. The obtained results testify to the investigated compositions are characterized by the individual crystal lattices. It is established, that the RbBeCl³ compound has the tetragonal lattice with the parameters: a=6.59; c=5.58 A

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[en] To investigate the synthetic route towards anhydrous Be(NO₃)₂ (2), beryllium esterates [BeCl₂(MeOAc)₂] (4a), [BeCl₂(EtOAc)₂] (4b), [BeCl₂(iPrOAc)₂] (4c), [BeCl₂(MeOForm)₂] (4d), [BeCl₂(EtOForm)₂] (4e), and [BeCl₂(iPrOForm)₂] (4f) were synthesized and spectroscopically characterized. Additionally, the crystal structure of [BeCl₂(MeOAc)₂] (4a) was determined and DFT calculations on these adducts were performed. These four-coordinate beryllium complexes react, in contrast to BeCl₂, readily with N₂O₄ under the evolution of NOCl to form ester adducts of Be(NO₃)₂ (5), which react with excess amounts of N₂O₄ to afford known (NO)₂[Be(NO₃)₄] (1). However, it is not possible to completely remove the carboxylic acid esters from nitrosyl salt 1. Therefore, the thermal decomposition leads to the formation of mixtures of beryllium nitrates 2 and 5. Furthermore it could be shown that this mixture decomposes even at ambient temperature slowly to [Be₄O](NO₃)₆ (3). (copyright 2018 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

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