Hydrophilic–Lipophilic Balance (HLB): Classical Indexation and Novel Indexation of Surfactant

Chapter 45 Hydrophilic–Lipophilic Balance (HLB): Classical Indexation and Novel Indexation of Surfactant Yuji Yamashita, Yuji Yamashita Department of Pharmaceutical and Life Sciences, Faculty of Pharmacy, Chiba Institute of Science, Choshi, Chiba, JapanSearch for more papers by this authorKazutami Sakamoto, Kazutami Sakamoto Department of Pharmaceutical and Life Sciences, Faculty of Pharmacy, Chiba Institute of Science, Choshi, Chiba, JapanSearch for more papers by this author Yuji Yamashita, Yuji Yamashita Department of Pharmaceutical and Life Sciences, Faculty of Pharmacy, Chiba Institute of Science, Choshi, Chiba, JapanSearch for more papers by this authorKazutami Sakamoto, Kazutami Sakamoto Department of Pharmaceutical and Life Sciences, Faculty of Pharmacy, Chiba Institute of Science, Choshi, Chiba, JapanSearch for more papers by this author Hiroyuki Ohshima, Hiroyuki OhshimaSearch for more papers by this author Book Author(s):Hiroyuki Ohshima, Hiroyuki OhshimaSearch for more papers by this author First published: 19 September 2016 https://doi.org/10.1002/9781119075691.ch45Citations: 12 AboutPDFPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShareShare a linkShare onFacebookTwitterLinked InRedditWechat Abstract The hydrophilic–lipophilic balance (HLB) of a surfactant, one of the most widely used indicators of the surfactant's usability for a given application, is a measure of a surfactant partitioning tendency between oil and water. The HLB number shows a good correlation with the properties of the surfactant solution, and provides significant benefit to the development of advanced emulsification technology. The HLB number scale, introduced by Griffin in 1949, was the first-ever successful attempt of a quantitative characterization of the polyoxyethylene nonionic surfactants. It has often been found that the classification of surfactants by HLB number is not helpful in enabling researchers to predict the optimum emalsification. Although the alternative methods used to calculate the HLB number, such as Davies' method and the organic conceptual diagram, have been proposed subsequently, the HLB values obtained by these three methods are incompatible, leading to an undesired formulation. To resolve the misfit between the HLB number and the solution properties, and applications, the new method has been proposed by using the chromatography technique to introduce the novel index, integrated surfactant potency (ISP). Citing Literature Encyclopedia of Biocolloid and Biointerface Science 2V Set, Volume I&II RelatedInformation