 Many atmospheric chemicals occur in the gas phase as well as in liquid cloud droplets and aerosol particles Therefore, it is necessary to understand the distribution between the phases According to Henry's law, the equilibrium ratio between the abundances in the gas phase and in the aqueous phase is constant for a dilute solution Henry's law constants of trace gases of potential importance in environmental chemistry have been collected and converted into a uniform format The compilation contains 17 350 values of Henry's law constants for 4632 species, collected from 689 references It is also available at http://wwwhenrys-laworg 

/pdf/compilation-of-henry-s-law-constants-version-4-0-for-water-58il9q0ogv.pdf

Compilation of Henry's law constants (version 4.0) for water as solvent

VOLUME I Introduction The Incentive Physical-Chemical Properties Experimental Methods Quantitative Structure-Property Relationships (QSPRs) Mass Balance Models of Chemical Fate Data Sources and Presentation Illustrative QSPR Plots and Fate Calculations References Aliphatic and Cyclic Hydrocarbons Lists of Chemicals and Data Compilations Summary Tables and QSPR plots References Mononuclear Aromatic Hydrocarbons Lists of Chemicals and Data Compilations Summary Tables and QSPR plots References Polynuclear Aromatic Hydrocarbons (PAHs) and Related Aromatic Hydrocarbons Lists of Chemicals and Data Compilations Summary Tables and QSPR plots References VOLUME II * Halogenated Aliphatic Hydrocarbons Chlorobenzenes and Other Halogenated Mononuclear Aromatics Polychlorinated Biphenyls (PCBs) Chlorinated Dibenzop-dioxins Chlorinated Dibenzofurans VOLUME III * Ethers Alcohols Aldehydes and Ketones Carboxylic Acids Phenolic Compounds Esters VOLUME IV Nitrogen and Sulfur Compounds Lists of Chemicals and Data Compilations Summary Tables References Herbicides Lists of Chemicals and Data Compilations Summary Tables References Insecticides Lists of Chemicals and Data Compilations Summary Tables References Fungicides Lists of Chemicals and Data Compilations Summary Tables References APPENDICES List of Symbols and Abbreviations Alphabetical Index CAS Registry Index Molecular Formula Index * Each chapter contains lists of chemicals and data compilations, summary tables, QSPR plots, and references

Handbook of Physical-Chemical Properties and Environmental Fate for Organic Chemicals

Experiments on the role of water in petroleum formation

CPA (Cubic-Plus-Association) is an equation of state that is based on a combination of the Soave−Redlich−Kwong (SRK) equation with the association term of the Wertheim theory. The development of CPA started in 1995 as a research project funded by Shell (Amsterdam), and the model was first published in 1996. Since then, it has been successfully applied to a variety of complex phase equilibria, including mixtures containing alcohols, glycols, organic acids, water, and hydrocarbons. Focus has been placed on cases of industrial importance, e.g., systems with gas-hydrate inhibitors (methanol, glycols), glycol regeneration and gas dehydration units, oxygenate additives in gasoline, alcohol separation, etc. This manuscript, which is the first of a series of two papers, offers a review of previous applications and illustrates current focus areas related to the estimation of pure compound parameters, alcohol−hydrocarbon vapor−liquid equilibria (VLE) and solid−liquid equilibria (SLE), as well as aqueous systems. Th...

Ten Years with the CPA (Cubic-Plus-Association) Equation of State. Part 1. Pure Compounds and Self-Associating Systems

An internally consistent correlation for predicting the critical properties and molecular weights of petroleum and coal-tar liquids

The mutual solubilities at the three-phase equilibrium pressure of three C/sub 6/ hydrocarbons (benzene, cyclohexane and n-hexane) and water have been experimentally investigated up to 482 K. A thermodynamic analysis of these new measurements and of critically selected literature data has been carried out up to the three-phase critical end point. Information is also provided on the two-phase critical locus. The solubility of hydrocarbons in water has been used to calculate Henry's constants, while the solubility of water in the hydrocarbons has been correlated with a modified version of the Redlich-Kwong equation of state. Consideration is also given to the effect of pressure on the mutual solubilities.

High‐temperature mutual solubilities of hydrocarbons and water. Part I: Benzene, cyclohexane and n‐hexane

In Part I (Tsonopoulos and Wilson, 1983), the mutual solubilities of three C6 hydrocarbons (benzene, cyclohexane, n-hexane) and water were experimentally investigated and, together with critically selected literature data, were correlated up to the three-phase critical end point. The present paper extends this analysis to the mutual solubilities of three C8 hydrocarbons (ethylbenzene, ethylcyclohexane, n-octane) and water, which have been measured at the three-phase equilibrium pressure up to the critical temperatures (568, 561 and 539 K, respectively). A thermodynamic analysis of these new measurements and of available literature data has been performed up to the three-phase critical end point. Information is also provided on vapor-phase equilibrium compositions. The solubility of hydrocarbons in water has been used to calculate Henry's constants, while the solubility and volatility of water in hydrocarbons has been successfully correlated with several modifications of the Redlich-Kwong equation of state.

High‐temperature mutual solubilities of hydrocarbons and water. Part II: Ethylbenzene, ethylcyclohexane, and n‐octane

Density, viscosity, and surface tension of coal liquids have been experimentally determined at temperatues up to 850/degree/F and pressures up to 3200 psia. Measurements were made on liquids produced with the Exxon Donor Solvent process from Illinois and Wyoming coals. Several measurements were also made to determine the effect of dissolved hydrogen on the physical properties of coal liquids. These data were used to investigate the applicability of the existing physical property correlations to coal-derived liquids. Results indicate that the existing correlations are generally satisfactory for the temperature and pressure dependence of density but are unsatisfactory for the viscosity and surface tension of coal-derived liquids. 27 refs.

Density, viscosity, and surface tension of coal liquids at high temperatures and pressures

Volatility of coal liquids at high temperatures and pressures

Coal liquids produced from SRC-II processing of Powhatan No.6 bituminous coal were distilled into a number of narrow-boiling cuts. Vapour pressure measurements were carried out on 6 cuts at temperatures from 267 to 788 K and pressures to 3.6 MPa. Heats of vaporisation were measured in a flow calorimeter on these same fractions at temperatures from 366 to 755 K. It was found that the modified BWR equation-of-state developed by Brute specifically for coal liquids gave the best representation of vapour pressure data. An empirical method involving a simple BP relationship combined with the Watson equation gave the best predictions of latent heat data.

Grant M. Wilson

Papers

High‐temperature mutual solubilities of hydrocarbons and water. Part I: Benzene, cyclohexane and n‐hexane

High‐temperature mutual solubilities of hydrocarbons and water. Part II: Ethylbenzene, ethylcyclohexane, and n‐octane

Density, viscosity, and surface tension of coal liquids at high temperatures and pressures

Volatility of coal liquids at high temperatures and pressures

Thermophysical properties of coal liquids. 3. Vapor pressure and heat of vaporization of narrow boiling coal liquid fractions