The Transport of Beryllium in Beryllium Dichloride Vapour,
Abstract
Experiments on the transfer of beryllium in beryllium chloride at pressures of about 0.00014 atmospheres have been made in the temperature range between 1250 and 1500K. The transport can be well interpreted as resulting from the reaction Be (solid) + BeCl2(g). The interpretation, however, cannot be reconciled with the mass spectroscopic investigation by Hildenbrand and Theard on the enthalpy of formation of monomer beryllium monochloride gas. With a reasonably estimated value for the entropy of the molecule (BeCl)2 the transport can be interpreted as resulting from Be (s) + BeCl2(g) = (BeCl)2(g) but this leads to a heat of association of monomer monochloride to the dimer which is very high, of the order of -90 kcal. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 23, 1971
- Accession Number
- AD0728679
Entities
People
- P. Gross
- R. H. Lewin