Volume 43, Issue 3, September 2014
Index of content:
- REGULAR ARTICLES
Reference Correlation of the Viscosity of Cyclohexane from the Triple Point to 700 K and up to 110 MPa43(2014); http://dx.doi.org/10.1063/1.4891103View Description Hide Description
A new correlation for the viscosity of cyclohexane is presented. The correlation is based upon a body of experimental data that has been critically assessed for internal consistency and for agreement with theory. It is applicable in the temperature range from the triple point to 700 K at pressures up to 110 MPa. In the dilute gas region, at pressures below 0.3 MPa, the correlation is valid up to 873 K. The overall uncertainty of the proposed correlation, estimated as the combined expanded uncertainty with a coverage factor of 2, varies from 0.5% for the viscosity of the dilute gas and of liquid at ambient pressure to 5% for the viscosity at high pressures and temperatures. Tables of the viscosity generated by the relevant equations, at selected temperatures and pressures and along the saturation line, are provided.
IUPAC-NIST Solubility Data Series. 103. Oxygen and Ozone in Water, Aqueous Solutions, and Organic Liquids (Supplement to Solubility Data Series Volume 7)43(2014); http://dx.doi.org/10.1063/1.4883876View Description Hide Description
This volume is an update of the Solubility Data Series Volume 7 published in 1981 on oxygen and ozone. For this volume, the literature was covered from 1981 to 2009 with some papers from 2010. Some earlier papers missed in the 1981 volume are included. Interest in the solubility of oxygen and of ozone continues to be high. The solubility of oxygen in water at low pressure seems well established, but more work is needed on the solubility of oxygen in water at high pressure and high temperature. There is now a wealth of salt-effect data on the solubility in aqueous salt solutions, but some glaring discrepancies still exist. Little has been done on salt effects at high pressure and high temperature. The solubility data of oxygen in hydrocarbons seem sparse. The solubility of oxygen in alcohols through C5 seems well established. Between the 1981 volume and this volume, there are solubility data in over 70 fluorocarbons and fluorocarbon compounds with O, H, S, and N. A new area is the solubility of oxygen in ionic liquids, which are becoming increasingly important as replacement solvents for volatile organic solvents. Information on the solubility of ozone in water, aqueous solutions and organic liquids has also been updated.
43(2014); http://dx.doi.org/10.1063/1.4892935View Description Hide Description
This paper contains new, representative reference equations for the viscosity of benzene. The equations are based in part upon a body of experimental data that has been critically assessed for internal consistency and for agreement with theory whenever possible. The correlation is valid from the triple point (278.647 K) to 675 K, and at pressures up to 300 MPa, with the exception of temperatures lower than 350 K where the pressure is restricted to 200 MPa. For the liquid phase, at temperatures from 288 to 373 K at pressures up to 80 MPa, we estimate the uncertainty (at a 95% confidence level) to be 1.8%, increasing to 3.4% at 200 MPa, and 5% at pressures up to the correlation maximum. For the liquid at temperatures from 373 to 523 K, the uncertainty is 2.7% at pressures from saturation to 50 MPa, rising to 3.6% at 300 MPa. For temperatures above 523 K, we estimate the uncertainty in the liquid phase to be 5%. The uncertainty for the low-density fluid phase at temperatures from 305 to 640 K and pressures to 0.3 MPa is estimated to be 0.2%.