Investigation of Thin Aqueous Films on Silica Using a Modified Interferometric Technique

✍ Scribed by P. Somasundaran; S. Simpson; R.K. Jain; I. Ivanov; V. Raghuraman

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 133 KB
• Volume: 225
• Category: Article
• ISSN: 0021-9797
• DOI: 10.1006/jcis.2000.6735

✦ Synopsis

The thinning behavior of liquid films between free bubbles and silica is investigated using the interferometric technique. Stable films were obtained at higher salt concentrations compared to previous studies because of the improved cleaning procedure. In contrast to the captive bubble technique used in the past, the free bubble method employed more closely approximates such processes as flotation. The results obtained for aqueous films at low and high ionic strengths are in better agreement with theoretical predictions than those in previous studies. Copyright 2000 Academic Press.