Research Highlights Archive
New International Formulation for the Thermal Conductivity of H2O
M. L. Huber, R. A. Perkins, D. G. Friend, J. V. Sengers, M. J. Assael, I. N. Metaxa, K. Miyagawa, R. Hellmann, and E. Vogel
An international task group, comprising members affiliated with IAPWS and IATP, has completed its examination of the data, theory, and models most appropriate for describing the thermal conductivity of water over broad ranges of temperature and pressure. The new equation presented by the authors offers an improved theoretical description of the critical region, allows calculations in a broader range of state variables, considers an expanded set of experimental data, and is consistent with the more recent consensus document for the thermodynamic properties of water.
IUPAC-NIST Solubility Data Series. 95. Alkaline Earth Carbonates in Aqueous Systems. Part 1. Introduction, Be and Mg
Alex De Visscher, Jan Vanderdeelen, Erich Königsberger, Bulat R. Churagulov, Masami Ichikuni, and Makoto Tsurumi
The solubilities of alkaline earth carbonates are important in numerous areas such as biology, environmental sciences, and geology. This paper compiles and evaluates solubility data of the alkaline earth carbonates in water and in simple aqueous electrolyte solutions.
Wavelengths, Transition Probabilities, and Energy Levels for the Spectra of Strontium Ions (Sr II through Sr XXXVIII)
J. E. Sansonetti
The author reviews the published literature on the spectra for each ionization stage of strontium from singly ionized (Sr II) to hydrogen-like (Sr XXXVIII) and compiles lists of the most accurate wavelengths and energy levels. The author presents brief summary of the history of research for each spectrum and presents details on the data.
Equation of State for Solid Phase I of Carbon Dioxide Valid for Temperatures up to 800 K and Pressures up to 12 GPa
J. P. Martin Trusler
In this paper, the author reviews the available thermodynamic-property data for solid phase I of carbon dioxide and determines the parameters of a new fundamental equation of state based on the quasi-harmonic approximation and in the form of a Helmholtz energy function.
IUPAC-NIST Solubility Data Series. 91. Phenols with Water. Part 2. C8 to C15 Alkane Phenols with Water
Marian Góral, David G. Shaw, Andrzej Mączyński, and Barbara Wiśniewska-Gocłowska
The mutual solubilities and related liquid-liquid equilibria of 43 binary systems of C7 to C15 phenols with water are exhaustively and critically reviewed. Reports of experimental determination of solubility that appeared in the primary literature prior to the end of 2009 are compiled. For 11 systems, sufficient data are available to allow critical evaluation. All data are expressed as mass percent and mole fraction as well as the originally reported units. The standard evaluation criteria used throughout the Solubility Data Series were applied.
The IUPAC-NIST Solubility Data Series: A Guide to Preparation and Use of Compilations and Evaluations
The IUPAC-NIST Solubility Data Series (SDS) is an ongoing project that provides comprehensive reviews of published data for solubilities of gases, liquids and solids in liquids or solids. This paper is a guide to the SDS and is intended for the benefit of both those who use the SDS as a source of critically evaluated solubility data and who prepare compilations and evaluations for future volumes. Terminology and nomenclature currently recommended by IUPAC and other international bodies and relates these to obsolete forms that appear in the older solubility literature are presented. In addition, this paper presents a detailed guide to the criteria and procedures used in data compilation, evaluation, and presentation and considers special features of solubility ingas+liquid, liquid+liquid, and solid+liquid systems. In the past, much of this information was included in introductory sections of individual volumes of the SDS.
Fundamental Equations of State for Parahydrogen, Normal Hydrogen, and Orthohydrogen
New fundamental equations of state for parahydrogen, normal hydrogen, and orthohydrogen were developed to replace the existing property models. To accurately predict thermophysical properties near the critical region and in liquid states, the quantum law of corresponding states was applied to improve the normal hydrogen and orthohydrogen formulations in the absence of available experimental data.