Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Thomas B. Douglas"'
Autor:
Thomas B. Douglas, David A. Ditmars
Publikováno v:
J Res Natl Bur Stand A Phys Chem
The relative enthalpy of NBS Standard Reference Material No. 720 (99.98 percent pure, single-crystal α-Al(2)O(3), a calorimetrie heat-capacity standard) was measured over the range 273 to 1173 K by the drop method using a highly precise Bunsen ice c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5e5103ca7f8dc2f3ff4197c0eb8793a
https://pubmed.ncbi.nlm.nih.gov/34876738
https://pubmed.ncbi.nlm.nih.gov/34876738
Autor:
Thomas B. Douglas
Publikováno v:
J Res Natl Bur Stand A Phys Chem
For the transpiration determination of vaporization properties whose interconsistency is critical, the simultaneous vaporization of a reference substance such as uncontaminated gold is suggested as an alternative to accurate pyrometry. Calculations s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70d245c72eb28f041d50e10673bc8105
https://pubmed.ncbi.nlm.nih.gov/34565879
https://pubmed.ncbi.nlm.nih.gov/34565879
Autor:
Thomas B, Douglas, Ralph F, Krause
Publikováno v:
Journal of research of the National Bureau of Standards. Section A, Physics and chemistry. (3)
Using an accurate transpiration method, AlF(3) was sublimed near 1200 K into argon containing 0, 0.02, and 0.76 atm of HF, but no reaction between AlF(3) and the HF was detected within the precision (about 1%). Two alternative structures of HAlF(4) a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::21d001e8d7a972ef7cc8be56504aa2da
https://pubmed.ncbi.nlm.nih.gov/32189743
https://pubmed.ncbi.nlm.nih.gov/32189743
Autor:
David A. Ditmars, Thomas B. Douglas
Publikováno v:
Journal of research of the National Bureau of Standards. Section A, Physics and chemistry. (2)
The relative enthalpy of beryllium 1:3-aluminate, BeO · 3Al(2)O(3), was measured from 273 to 1173 °K. Thermodynamic properties were calculated up to 2150 °K (near the melting point) by extrapolating the present measurements and making them consist
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64eb4ba14c71bd85e444682a4c9823aa
https://pubmed.ncbi.nlm.nih.gov/31824033
https://pubmed.ncbi.nlm.nih.gov/31824033
Autor:
Andrew C, Victor, Thomas B, Douglas
Publikováno v:
Journal of Research of the National Bureau of Standards. Section A, Physics and Chemistry
As a step in developing new standards of high-temperature heat capacity and in determining accurate thermodynamic data for simple substances, the enthalpy (heat content) relative to 273 °K, of high purity fused magnesium oxide, MgO, and of sintered
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::a64fc43fe0a6bc7fc488419f7dc865eb
https://pubmed.ncbi.nlm.nih.gov/31580570
https://pubmed.ncbi.nlm.nih.gov/31580570
Autor:
Thomas B. Douglas
Publikováno v:
Journal of Research of the National Bureau of Standards. Section A, Physics and Chemistry
Giving greatest weight to the experimentally measured highest decomposition pressures and the enthalpies in one-phase fields, thermodynamicall y interconsistent integral and differential enthalpies (heat contents), heat capacities, entropies, and Gib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e41b40ccd54d3797c36d3e2900456626
https://pubmed.ncbi.nlm.nih.gov/31580589
https://pubmed.ncbi.nlm.nih.gov/31580589
Autor:
Thomas B. Douglas
Publikováno v:
The Journal of Chemical Thermodynamics. 9:1165-1179
There are calculated for 298 K and higher temperatures the standard entropies of the liquid and the important gas species (monomer, dimer, and trimer) of MoF 5 , and their differences in enthalpy and Gibbs energy. Besides estimated mean heat capaciti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::480a9973d1696c18804cf29528acc21e
https://doi.org/10.1016/0021-9614(77)90117-3
https://doi.org/10.1016/0021-9614(77)90117-3
Autor:
Thomas B. Douglas, Ralph F. Krause
Publikováno v:
The Journal of Chemical Thermodynamics. 9:1149-1163
A sample of MoF 5 was prepared by reaction of MoF 6 (g) and Mo(c). Melting curves of temperature against time established the melting temperature at zero impurity to be 318.85 K, the enthalpy of fusion to be 6.1 kJ mol −1 (±5 per cent), and the cr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a6b12c969557bac2cae733829bde8da
https://doi.org/10.1016/0021-9614(77)90116-1
https://doi.org/10.1016/0021-9614(77)90116-1
Autor:
Thomas B. Douglas, Ralph F. Krause
Publikováno v:
The Journal of Chemical Thermodynamics. 9:511-522
To complement transpiration and other methods when applied to partially dissociated or associated vapors, a direct static method was developed for measuring vapor pressures of around 1 kPa. A valve brings argon, originally at a little higher pressure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec6f59e53df9c6de597b5a3348e94718
https://doi.org/10.1016/0021-9614(77)90155-0
https://doi.org/10.1016/0021-9614(77)90155-0
Publikováno v:
Journal of the American Chemical Society. 74:2472-2478
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85cf1b8f69003d6d7d9ff8653f4edfee
https://doi.org/10.1021/ja01130a008
https://doi.org/10.1021/ja01130a008