Dynamical Shift Techniques for Fast Characterization of Deactivation Kinetics of Heterogeneous Catalysts

The pendant-drop method combined with axisymmetric drop-shape analysis was used to determine liquidvapor and liquid-liquid interfacial tension of mixtures consisting of heptane (1), toluene (2), and N,Ndimethylformamide (3). The method of pendant drop with an efficient temperature control of the measuring cell allows precision measurements of surface tension and interfacial tension. Surface tensions and liquid densities of more then 20 ternary mixtures in the homogeneous region were determined at a normal pressure of 1 bar and over a temperature range from 287 K to 317 K. Inside the miscibility gap of this system, liquid densities in both liquid phases using buoyancy experiments dependent on temperature were obtained. Furthermore, the pendant-drop technique allows measurements of the interfacial tension between the two liquid phases even close to the critical solution point for the ternary mixture. The resulting interfacial tension and the density difference vs temperature up to the critical solution point could be well described using a Wegner-type expression.

show abstract

Surface and Interfacial Tension of the Ternary System Heptane + Toluene + N,N-Dimethylformamide

Kahl

Wadewitz

Winkelmann

2004

J. Chem. Eng. Data

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Dynamical Shift Techniques for Fast Characterization of Deactivation Kinetics of Heterogeneous Catalysts

Cited by 1 publication

References 0 publications

Surface and Interfacial Tension of the Ternary System Heptane + Toluene + N,N-Dimethylformamide

Surface and Interfacial Tension of the Ternary System Heptane + Toluene + N,N-Dimethylformamide

Contact Info

Product

Resources

About