Application Note

Agglomerate-Free Dispersion For Hand Sanitizers

Gel sanitizer iStock-1224013512

There are a number of active ingredients used in the manufacture of hand sanitizers, however the most effective sanitizing products are based on alcohol, usually isopropyl or ethyl alcohol, with the content typically being between 60 and 95%. One of the key steps in the manufacturing process is preparation of the gel. Obtaining an agglomerate-free dispersion is essential to ensure a clear, bright gel after neutralization but low density powders such as Carbopol can be difficult to incorporate into liquids with a conventional agitator, and this can lead to dusting problems and aeration. The high shear mixing of a Silverson mixer ensures rapid incorporation and dispersion of powders to form an agglomerate-free solution, with minimized aeration.

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