"True" Hydrophilic-Lipophilic Balance of Polyoxyethylene Fatty Acid Esters Nonionic Surfactants

PASQUALI R. C.; HELGUERA G.

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY

TAYLOR & FRANCIS INC

Lugar: New York; Año: 2013 p. 716 - 721

0193-2691

This article proposes a set of equations that allow the calculation of the hydrophilic-lipophilicbalance (HLB) value of polyoxyethylene esters from quality control data of the raw materials(fatty acids and polyethylene glycol) and the finished product (surfactant). The quality controldata required include the acid value of the fatty acid, the hydroxyl value of the polyethyleneglycol, and the hydroxyl value of the surfactant. Moreover, these calculations allow the determinationof the mean relative molecular masses of the fatty acids, polyethylene glycol, monoesters,and diesters, and to calculate the proportion of polyoxyethylene monoester andpolyoxyethylene diester. Models such as this would be of great utility for the rational designof emulsified products.