Ceteareth 21 Flake Emulsifier for Stable Emulsions CAS NO 68439-49-6 Ceteareth-21 is a non-ionic surfactant made by ethoxylation of a mixture of cetearol and stearyl alcohol. It is a white solid in the form of flakes and is packaged in 20kg/bag. As an efficient emulsifier in the oil in water (O/W) system, it can easily blend into the oil phase when heated. Even in the face of complex formula environment, it can also help to form a lotion with delicate appearance, long-term stability of viscosity and wide range of pH applications.
Usage suggestions
In the formulation development process, this emulsifier performs best under high temperature conditions, usually during the oil phase preparation stage. The recommended dosage is 1-5% - the proportion can be appropriately increased in thick and heavy face cream, while the dosage can be reduced in light and thin lotion. It is suitable for face cream, lotion, sunscreen, liquid foundation and other formulations. If it is necessary to improve the dispersibility or ductility of the formula, it can be used with
Sodium acrylate, which helps to accurately control viscosity and maintain phase stability.
Application and Performance
With the ability to form delicate and even lotion, Ceteareth-21 is widely used in personal care products. It can naturally increase product consistency while helping pigments, sunscreens, or powders to be evenly suspended in the formula, avoiding sedimentation or layering. As one of the core components of the water in oil emulsion system, it can enhance the formula's resistance to ion interference and prevent product delamination due to environmental pressure during storage. In addition to its emulsifying effect, it can also enhance the overall formula stability, allowing both wash off and wash free products to maintain a delicate and uniform texture, especially suitable for mid to high end skincare and makeup products.