{"title":"Determination of HLB values of some nonionic surfactants and their mixtures","authors":"Réka Kothencz, R. Nagy, L. Bartha","doi":"10.24193/SUBBCHEM.2017.4.38","DOIUrl":null,"url":null,"abstract":"Advanced analytical and impact assessment methods are needed for the development of modern surfactants, so the composition, the effect and other properties of surfactants are examined by analytical tools which may be suitable for the quality testing of the raw materials, the intermediates and the final products. The HLB values of non-ionic surfactants and their mixtures were determined by three different methods: theoretical HLB based on the chemical structure and the given HLB of surfactants, the Greenwald method and an improved, titrimetric method. Our aim was to investigate if the new method to determine the water number and HLB value is suitable for this type of commercial surfactants and their mixtures. The particle size and the turbidity of micelles formed in surfactant solutions were also measured and evaluated.","PeriodicalId":22005,"journal":{"name":"Studia Universitatis Babes-bolyai Chemia","volume":"2 1","pages":"451-458"},"PeriodicalIF":0.5000,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Studia Universitatis Babes-bolyai Chemia","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.24193/SUBBCHEM.2017.4.38","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 8
Abstract
Advanced analytical and impact assessment methods are needed for the development of modern surfactants, so the composition, the effect and other properties of surfactants are examined by analytical tools which may be suitable for the quality testing of the raw materials, the intermediates and the final products. The HLB values of non-ionic surfactants and their mixtures were determined by three different methods: theoretical HLB based on the chemical structure and the given HLB of surfactants, the Greenwald method and an improved, titrimetric method. Our aim was to investigate if the new method to determine the water number and HLB value is suitable for this type of commercial surfactants and their mixtures. The particle size and the turbidity of micelles formed in surfactant solutions were also measured and evaluated.
期刊介绍：
Studia Universitatis Babes-Bolyai, Seria Chemia publishes fundamental studies in all areas of chemistry and chemical engineering.
Coverage includes experimental and theoretical reports on quantitative studies of structure and thermodynamics, kinetics, mechanisms of reactions, inorganic, organic, organometallic chemistry, biochemistry, computational chemistry, solid-state phenomena, surface chemistry, chemical technology and environmental chemistry.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
