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Water and aqueous systems are widely used in metrology, which is a major focus of the National Institute of Standards and Technology (NIST). Standards such as those produced by IAPWS can be used to calibrate instruments and validate protocols. In this work
Recommendations are given for Problem 11(b): cyclohexane density at problem conditions: (1) 0.1 MPa, 300 K and (2) 20.0 NAPA, 400 K. The recommended values and their uncertainties are: 772.13 0.3 kg m-3 and 702.9 1.4 kg m-3.
A new correlation has been developed to represent the second virial coefficient of water (H2O) as a function of temperature. The formulation was fitted to experimental data, both for the second virial coefficient itself and for a quantity related to its
M P. Hodges, R J. Wheatley, G K. Schenter, Allan H. Harvey
We construct a rigid-body (5-dimensional) potential-energy surface for the water-hydrogen complex using scaled perturbation theory (SPT). An analytic fit of this surface is obtained, and using this, two minima are found: the global miniumum has C 2v
M S. Hodes, K A. Smith, Wilbur S. Hurst, Walter J. Bowers Jr., P Griffith, K Sako
Solubility and deposition experiments were performed with aqueous sodium sulfate and potassium sulfate solutions at elevated temperatures and pressures typical of the Supercritical Water Oxidation (SCWO) process. For all experiments the test cell was the
Property databases are widely used for the design and analysis of refrigeration systems. Version 7 of the NIST REFPROP Reference Fluid Thermodynamic and Transport Properties) database is described. Compared with previous versions, the database includes
Robert D. Chirico, Michael D. Frenkel, Vladimir Diky, K N. Marsh, R C. Wilhoit
ThermoML is an XML-based approach for storage and exhange of experimental and critically evaluated thermophysical and thermochemical property data. Extensions to the ThermoML schema for the expression of uncertainties are described. Basic principles, scope
This book narrates the story of pioneering scientists in the Netherlands, who reached a profound and comprehensive understanding of fluid mixture phase separation within a brief time span around the turn of the 19th century. This achievement was the
A predictive method for estimating the zij parameter in the mixture model of Lemmon and Jacobsen [Int. J. Thermophysics 20:1629 (1999)] has been developed. Data for 76 binary pairs have been used in the development of this method, and these data are
The p-p-T relationships were measured for binary hydrocarbon mixtures containing carbon dioxide (CO 2) and ethane (C 2H 6). Temperatures ranged from 200 K to 400 K with pressures up to 35 MPa. Measurements of p-p-T were conducted on compressed gaseous and