Surface tension measurement of FAP-based ionic liquid pendant drops in a high vacuum/gas cell-Reference-Cited by-同舟云学术

Surface tension measurement of FAP-based ionic liquid pendant drops in a high vacuum/gas cell

Published:2024-03-20 Issue:5 Volume:96 Page:709-717
ISSN:0033-4545
Container-title:Pure and Applied Chemistry
language:en
Short-container-title:

Author:

Tiongson Julius Kim¹²,Martinez Imee Su¹²

Affiliation:

1. Institute of Chemistry, National Science Complex , 120005 University of the Philippines , Diliman , Quezon City , 2100 , Philippines

2. Natural Science Research Institute , University of the Philippines , Diliman , Quezon City , 2100 , Philippines

Abstract

Abstract The surface tension of ionic liquids with the tris(pentafluoroethyl)trifluorophosphate (FAP) anion were measured using a home-built surface tensiometer. A high-vacuum line was used to pre-evacuate the ionic liquids prior to analyses, ensuring that the samples were free of dissolved gases, water, and volatile impurities. Using the pendant drop method, measurements were performed in a custom-built surface tension vacuum or gas cell, in the presence of nitrogen and carbon dioxide gas. To calibrate the instrument, surface tension measurement of known liquids was also performed. Results show that the presence of saturated carbon dioxide led to the lowering of measured surface tension values, indicating the adsorption of CO2 on the ionic liquid surface.

Funder

Natural Sciences Research Institute, University of the Philippines

Philippine Council for Industry, Energy, and Emerging Technology Research and Development

National Research Council of the Philippines

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/pac-2023-1113/pdf

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