Thermoddynamic Reference Data Base Available From NBS

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Standard State Thermodynamic Values At 298 15 K img

data compiled by various groups. The table is an important reference for geochemists, geologists, and chemists. Selected Values of Chemical Thermodynamic Properties: Tables for elements 35 through 53 in the standard order of arrangement-Donald D. Wagman 1969 The NBS Tables of Chemical Thermodynamic Properties-Donald D. Wagman 1982

NPSS REFPROP Thermodynamic Property Package User Guide

Reference State Method The method used to set the fluid's reference state temperature, pressure, enthalpy, and entropy. OTH other, user specified for real fluid No, the reference state method is always set to OTH. However, the user may change the reference state using the FlowStation function setRefState Tref Reference state temperature

Phase Diagram Activities

Thermodynamic Reference Data Base Available From NBS A new computerized standard reference database on the thermodynamic and physical properties of chemicals is available from NBS. The interactive database, DIPPR (Design Institute for Physical Property Data)-Data Com-

Chapter 6 Aqueous Thermodynamics

10 25oC (298.15K) is also known as the reference temperature. 11 NBS Tables of Chemical Thermodynamic Properties -Selected Values for Inorganic and C1 C2 Organic Substances in SI Units, Wagman, D.D., et al, 1982 12 The subscript f refers the energy of formation from the elements. The superscript R refers to the reference

In Memoriam: William (Mickey) Haynes (1943 to 2016)

the National Bureau of Standards (NBS, later re-named to the National Institute of Standards and Technology, NIST). Mickey began at the NBS Boulder Laboratories in 1970, where he remained throughout his career. He formally retired in 2003, but continued to serve NIST as a Scientist Emeritus and consulting employee until shortly before his death.


vention defined by the NIST (former NBS) standard buffers in which pH values had been assigned by calculating all the activity coefficients of all relevant species by the Debye-Hückel theory and the Bates-Guggenheim convention using a Harned cell (Buck et al. 2002). The Bates-Guggenheim con - vention applies only for low ionic strength


he thermodynamic reference database will be operative as of 2009-06. ECHNICAL APPROACH to n pability to be extended by the user with functions and scripts in a eb sites and 1 million web servers. The ally, eader should be able to draw all information from the data bank by simply looking at the render a the SIT-parameters) and those h

3rd Millenium Thermochemical Database for Combustion

This report is available, at no cost, at It is also available on paper to U.S. Department of Energy and its contractors, for a processing fee, from: U.S. Department of Energy Office of Scientific and Technical Information P.O. Box 62 Oak Ridge, TN 37831-0062 phone (865) 576-8401 fax (865) 576-5728 [email protected]

Thermodynamic Properties of CO2-Rich Gases, Including the

REFerence Fluid Thermodynamic & Transport PROPerties Reference-quality EOS for ~50 pure fluids (common gases, hydrocarbons, refrigerants, H2O) Mixture model to combine high-quality EOS for pures with minimal loss of accuracy Choose properties calculated, units Distributed as PC program, DLL, Fortran


This table gives the standard state chemical thermodynamic properties of about 2400 individual substances in the crystalline, l iquid, and gaseous states. Substances are listed by molecular formula in a modified Hill order; all compounds not containing carbon appear first, followed by those that

Insights into the development of standard reference databases

Thermodynamic standard reference data Also ab initio calculations Gas phase (atom centred wave functions) Crystalline phase (plane wave functions) Molecular dynamics (force field data) And empirical relationship and correlations for data between phases and systems Thermodynamics requires rigorous consistency

Monthly Letter Status Report for July 1988 (FIN A-4171-7).

Database searches for the month of July, 1988 include the DOE Energy Data Base, the NTIS, Metadex (American Society for Metals), and Compendex Plus (Engineering Information Inc.). Thirteen articles were selected (to order). Some of these are for use as library references and others will be reviewed by NBS.

Simulis Thermodynamics: an open framework for users and

thermodynamic calculations in these applications, but it can also be plugged in any legacy code. CAPE-OPEN [1] compliance of Simulis ® Thermodynamics through its implementation of the CAPE-OPEN standardized interfaces, thermodynamic plug and thermodynamic socket , is presented here.

A Thermal Conductivity Prediction Method for Refrigerant

This document has been made available through thermal conductivity of mixtures can be directly calculated from knowing their thermodynamic properties. a: , ,.a 1,a 2 : b: b 0 ,b 1 NIST Thermodynamic Properties of Refrigerants and Refrigerant Mixtures Database, NIST Standard Reference Database 23, Dec., !991

Brief History of the ASME Properties of Steam Subcommittee

Reference Database in an effort led by Allan Harvey (NIST). Software for industrial use implementing IAPWS-IF97 was developed in an effort led by William Parry (General Electric); this software was published in 1998 (and updated in 2003) and is distributed by the ASME. Finally, a new steam-tables

KAPL-4790 (DOE/OSTI-4500-R75)

A least-squares analysis of the Si02-pure water solubility database for pressures as low as 0.15 kb &e., p >0.05 gm/cc) was performed to quantify the Eqs. (4, 5) equilibria using Eq. (1). Table I summarizes the fitted thermodynamic parameters. The use of temperature- dependent D parameters was found to significantly improve the fit.

Standard Thermodynamic Values At 25 C Chemistry Reference

The NBS Tables of Chemical Thermodynamic Properties The purpose of the material in this book is to enable users of thermochemical data to predict values for standard enthalpies ofreactions involving organic compounds ranging in complex ity from simple alkanes to biologically important compounds such as amino acids.

Further developments of the thermodynamic reference

THEREDA thermodynamic reference database: Consistent, comprehensive and quality assured Supports modeling geochemical processes in waste disposal sites Includes interaction models for saline systems, gases and solids RES³T sorption database: Data collection based on surface complexation models (SCM)

ProSim s thermodynamic models library

Thermodynamic calculations in computer aided process simulation require defining a thermodynamic profile , which is fully configurable for software using ProSim's thermodynamic library. The following table shows the list of available models for each option of the thermodynamic profile.


The main sources of thermodynamic data are: Previous thermodynamic data compilations Open scientific literature Specific experimental programmes Estimations ThermoChimie relies on CODATA recommendations (Cox et al. 1989) for the primary master species


consistent thermodynamic data for geochemical calculations. A thermodynamic database, THEREDA 4, is now developed that: - enables the prediction of the activity, speciation and solubility of relevant toxic elements, - is applicable from low to high ionic strengths, - fulfils specific German quality requirements, and

Phase Diagrams For Ceramists

nist standard reference database 31 nist may 7th, 2018 - phase equilibria diagrams standard reference database srd 31 published from 1964 to 1992 as the well known phase diagrams for ceramists blue books is the result of a long standing collaboration between nist and the american ceramic society to develop and maintain a state of the art database'

Thermodynamic Network Calculations Applied to Biochemical

The Basis of Thermodynamic Network Calculations Wagman et al. [3] have given a detailed description of the data evaluation process used in the preparation of the NBS Tables of Chemical Thermodynamic Properties. These tables [3] contain values of the standard enthalpy of formation D fH 0, the standard Gibbs energy of formation D fG

Accurate Thermodynamic Properties From The Backone

17/5/2021  The Yaws Handbook of Thermodynamic Properties for Hydrocarbons and Chemicals, 2nd edition brings a one-stop database reference for engineers to quickly gain access on over 12,000 compounds, simple and complex fluids, and an extensive list of properties ‒ all to validate and improve on their thermodynamic modeling. Enhanced with eight new chapters

Gibbs Free Energy of Formation for Selected Platinum Group

6/1/2016  Although thermodynamic calculations, which are derived by various computational methods based on the available reference data, and experiment al methods yield considerab le uncertainties [22,24], the calculated thermodynamic values for PGM appear to


Compilations similar to those of reference 1 have been given in other publications, as, for example, references 2 through 6. These references have been utilized in extending the tables and charts to higher values of the Mach number. The extension to imperfect gases is based on the relations presented in references 7 and 8. SYMBOLS AND NOTATION

Anthropogenic carbon dioxide in the South Atlantic western

2 35 1. Introduction 36 The ocean plays a major role in the global carbon cycle by sequestrating annually 2.2 ±0.4 Pg C out of the total 8.0 ±0.5 Pg yr-1 of anthropogenic CO 37 2 (CANT) emitted to the 38 atmosphere as a result of activities such as fossil fuel burning, land use changes, deforestation 39 and cement production (Canadell et al., 2007). ). The Atlantic Ocean alone contributes wi

Journal of Research of the National Bureau of Standards

Journal of Research of the National Bureau of Standards data that were used in selecting the recommended values. It was automated by the NBS Office of Standard Reference Data from AIChE's 1985 resource book, Data Compilation: Tables of Properties of Pure Compounds. This printed database was prepared for DIPPR by Thomas E. Daubert and Ronald P.

J. Chem. Thermodynamics - NIST

Thermodynamic properties of 1-phenylnaphthalene and 2-phenylnaphthalene Robert D. Chiricoa,⇑, William V. Steeleb, Andrei F. Kazakova a Applied Chemicals and Materials Division, National Institute of Standards and Technology, Boulder, CO 80305-3337, USA bPhysical Properties Research Facility, Chemical and Biomolecular Engineering Department, University of Tennessee, Knoxville, TN 37996

Accurate Thermodynamic Properties From The Backone

The Yaws Handbook of Thermodynamic Properties for Hydrocarbons and Chemicals, 2nd edition stands as the trusted database to optimize petrochemical processes, equipment, and operations. Provides a reliable database reference for thermodynamic properties, even varied by temperature, as well as

guidelines01 introduction&selection sent

Consistency: Thermodynamic functions included in the database are relevant but also consistent when taken together, among thermodynamic functions for a given chemical reaction, and between thermodynamic functions for the whole chemical system. Exhaustivity: The database is exhaustive enough within its range of application,

NIST Standard Reference Database 23

REFPROP is based on the most accurate pure fluid and mixture models currently available. It implements three models for the thermodynamic properties of pure fluids: equations of state explicit in Helmholtz energy, the modified Benedict-Webb-Rubin equation of state, and

lltc Fermi National Accelerator Laboratory General P-T Fit

Reference herein to any specific commercial product, process, or service by trade name, for use with ACNET database /I/. Fit coefficients and P-T graphs are included. Fits cover the VPT saturation region and the gas region. The thermodynamic analysis of VPT bulb is used to

Monthly Letter Status Report for August 1985.

small NBS system is expected to be a very cost-effective vehicle for aiding the NBS workers in the process of conducting reviews and evalua-tions of DOE work. This small system will likely prove to be an efficient reference for use by both NRC workers and NRC contractors. Later, if the need arises, the information developed on the reviews, can

Phase Diagrams For Ceramists

NIST Standard Reference Database 31 NIST. Phase Equilibria Diagrams CD ROM Database Version 3 2. Binary Phase M Levin Carl R. Thermodynamic Modeling of Multicomponent Phase Equilibria. PHASE DIAGRAMS FOR CERAMISTS by STAND FOR''NBS SPECIAL PUBLICATION 486 GPO JUNE 16TH, 2018


NBS Technical Notes 270-5(18) and 270-7(19). The standard reduction potentials of the reaction (in EQ 3/6 format): Ln3+ +0.5 H 2O ^ Ln 2+ + H+ + 0.25 O 2(g) for ytrium, lanthanum and the lanthanides reported in the tables were calculated from the AGf°(Ln 3+)

Viscosity, and Surface Tension Data Mixtures Electrical

This series of compilations includes thermodynamic, transport, and physical properties of selected inorganic salts in the molten state. The early sections covered single­ salt melts, i.e., one-component systems in the classical phase-rule sense. Evaluated data on electrical conductance,

Alternative Sodium Recovery Technology High Hydroxide

nbs,0 VL = moles of undissolved boehmite at time = 0 hr divided by liquid volume (L). The fitted values of the pre-exponential constant, 0.00618/hr/(M OH) 1.471 , the activation energy, 115 kJ/mol, and the exponent of the free hydroxide concentration, 1.471, were sharply defined,

Measured Values with Those Predicted from the NBS Tables

the NBS Tables of Chemical and Thermodynamic Properties V. B. Parker, W. H. Evans,a} and R. L. Nuttall Center for Chemical Physics, National Bureau of Standards, Gaithersburg, MD 20899 Received February 4, 19%6; revised manuscript received October 29, 1986 This report presents the assessed thermochemical measurements on rubidium

References for Thermo-Calc Software and its Applications

Reference List: Thermo-Calc Software ǀ [email protected] 2 of 19 The references selectively listed in this document are regarding the development of the Thermo-Calc software/database/interface package, thermodynamic models implemented in the software, thermodynamic databases

Thermodynamics of Portland Cement Clinkering

Thermodynamic data for gas phases and a number of liquids and solids have been taken from the NASA CEA database (McBride et al., 2002). This is a comprehensive and freely available data set originally used in rocket combustion calculations; therefore it is ideally suited for

J. InJ 1989, 31 A Database and Retrieval System for the

A Database and Retrieval System for the NBS Tables of Chemical Thermodynamic Properties PEIMING WANG Institute of Chemical Metallurgy, Academia Sinica, P.O. Box 353, Beijing, People s Republic of China DAVID B. NEUMANN* Electrolyte Data Center, National Institute of Standards and Technology, Gaithersburg, Maryland 20899

Predictive Thermodynamics for Condensed Phases

Part II) is available from the American Institute of Physics, Suite 1NO1, 2 Huntington Quadrangle, Melville, NY 11747-4502. -NIST Standard Reference Database 85 NIST/TRC Table Database This database, known as WinTable, is designed to retrieve and display recommended property values of pure compounds and is essentially the electronic version of the TRC

Frequently Asked Questions for PHREEQC and PhreeqcI

association model to calculate thermodynamic properties and this model starts to break down at higher ionic strengths, somewhere between 1 and 2 molal, depending on solution composition. The activity coefficients of the major cations ions are fit mostly from chloride salts, the model may do reasonably well for majors in chloride dominated waters.

Phase Diagrams For Ceramists

'NIST Standard Reference Database 31 NIST May 7th, 2018 - Phase Equilibria Diagrams Standard Reference Database SRD 31 Published From 1964 To 1992 As The Well Known Phase Diagrams For Ceramists Blue Books Is The Result Of A Long Standing Collaboration Between NIST And The American Ceramic Society To Develop And Maintain A State Of The Art Database'

Accurate Thermodynamic Properties From The Backone

NBS 18, 389 (1937) RP983. [4] N. S. Osborne, H. F. Stimson, and D. C. Ginnings. Measurements of heat capacity and heat of vaporization of water in the range 0° to 100°C. J. Re search NBS 23, 197 (1939) RP1228. FluidProp - Asimptote NIST Reference Fluid Thermodynamic and Transport Properties Database: Version 10. REFPROP is an acronym for


The computer-readable database, the JANAF Thermochem-ical Tables (1985), NBS Standard Reference Database 13, is available for $ 1200 from the Ofrce of Standard Reference Data 4'323 Physics Building, National Bureau of Standards, Gaithers-burg, Maryland 20899, U.S.A. (telephone, 301-975-2208).

113 Web Thermo Tables an On-Line Version of the TRC

database, making this information readily and conve-niently available to users worldwide. 2. An Overview of TRC Thermodynamic Tables 2.1 Brief History The Thermodynamics Research Center (TRC) was founded in 1942 by Dr. Fredrick D. Rossini, Chief of the Section on Thermochemistry and Hydrocarbons at the National Bureau of Standards (NBS), to undertake