Volume 13, Issue 2, April 1984
Index of content:
13(1984); http://dx.doi.org/10.1063/1.555710View Description Hide Description
This review is a critical evaluation of the rate constants, mechanisms, and products of selected atmospheric reactions of hydrocarbons, nitrogen oxides, and sulfur oxides in air. The evaluation considers eight hydrocarbons (n‐butane, 2,3‐dimethylbutane, ethene, propene, 1‐butene, t r a n s‐2‐butene, toluene, and m‐xylene) for which smog chamber irradiations have been carried out under carefully controlled conditions and which have been the subject of computer modeling studies by more than one research group. The reactions involved are treated in the following categories: inorganic reactions in organic‐NO x ‐air irradiations; organic reactions of the formaldehyde‐NO x ‐air system; organic reactions of the acetaldehyde‐NO x ‐air system; organic reactions of the alkene‐NO x ‐air systems; organic reactions of the alkane‐NO x ‐air systems; organic reactions of selected carbonyl‐NO x ‐air systems; organic reactions of the aromatic‐NO x ‐air systems; combination reactions of peroxy radicals, and homogeneous gas phase SO2reactions. This report considers literature through early 1983.
13(1984); http://dx.doi.org/10.1063/1.555711View Description Hide Description
A detailed compilation of rate data for inelastic collision processes involving the homonuclear and heteronuclear diatomic halogen molecules is presented. The literature has been surveyed through April 1983. Processes that are considered include exchange of energy between electronic, vibrational, rotational and translational degrees of freedom, electronic quenching, dephasing, depolarization, pressure broadening, and spontaneous radiation. Collision partners include rare‐gas atoms, halogen and other diatomic molecules, and polyatomic species; a few measurements in liquids and cryogenic matrices are also included. Each data entry includes collision partner, temperature, method of measurement, and an error estimate where available. While a large mass of data is available for these systems, there still exist sizable gaps in our knowledge concerning these processes, particularly for the interhalogen species.
13(1984); http://dx.doi.org/10.1063/1.555712View Description Hide Description
The water solubilities of several polynuclear aromatic and heteroaromatic hydrocarbons have been compiled and reviewed for consistency through correlations with parameters such as surface area, molecular volume, and boiling point. The carbocycles and oxygen and sulfur heterocycles were governed by the same correlative equations, thereby indicating that these heteroatoms entered into only a limited degree of hydrogen bonding. Equations representing the nitrogen heterocycles differed from their carbocyclic counterparts by an approximately constant amount, suggesting that while the solubilizing effect of the nitrogen heteroatom may be large, it tends to remain constant within a similar series of compounds.
13(1984); http://dx.doi.org/10.1063/1.555713View Description Hide Description
This review covers the solubility of nitrogen and air in liquids as a function of temperature and pressure. Solubility data for individual systems were critically evaluated. Recommended or tentative values are presented as smoothing equations and/or in tabular form. Trends in homologous series or related solvents are discussed. Data for the n‐alkanes were smoothed with respect to temperature, pressure, and carbon number. Liquids include: water; heavy water; seawater; aqueous salt solutions; mixed solvents; hydrocarbons; organic compounds containing oxygen, halogen, sulfur, nitrogen, or silicon; olive oil; various biological fluids; H2S; SO2; NH3; CO2; nitrogen oxides; and several halogen and boron containing inorganic solvents.
13(1984); http://dx.doi.org/10.1063/1.555714View Description Hide Description
The present publication contains data on the thermophysical properties of deuterium oxide (heavy water). It is a companion to the paper on the thermophysical properties of fluid H2O published earlier in this journal by the same authors. The properties are represented by equations which can be readily programed on a computer and incorporated in data banks. All data have been carefully and critically analyzed. The compendium represents the best available data for fluid D2O.