Stearic Acid Emulsion

(Stearic Acid Emulsion)

The present invention relates to an emulsion comprising at least one fatty acid and a water soluble emulsifying agent. In particular, the invention provides an emulsion comprising at least 88% by mass of distilled water and a surfactant, wherein the emulsion remains in a viscous liquid form and does not require pH adjustment.

The physical stability of a formulation containing an emulsion is a critical property. Therefore, the solubility and phase-transition temperature of a stearic acid emulsion were studied. For this purpose, the solubility of stearic acid was altered by incorporating three organic amines as counterions. This change resulted in a more stable emulsion.

The effect of the stearic acid content was investigated by Fourier transform infrared spectroscopy (FTIR) and field emission scanning electron microscopy (FE-SEM). Further, the rheological properties of the emulsions were determined by rheological characterizations.

The physical characteristics of the emulsion include its apparent viscosity, pH, and oil globule size. Furthermore, the emulsion is characterized by the presence of a discontinuous lipophilic phase and a hydrophilic phase.

To prepare the emulsion, the stearic acid is suspended in water at a 5% concentration. The emulsion is then processed through high-temperature emulsification equipment. Once the emulsion is complete, it is mixed with a food-grade disperser.

A stearic acid emulsion consists of a suspension of 51.3 grams of chemically pure stearic acid. It is mixed with a suspension of 5.60 g of calcium oxide and 300 mL of hot water.

(Stearic Acid Emulsion)