Many active ingredients are used in the manufacture of hand sanitizers, but the most effective disinfection products are alcohol-based, usually isopropanol or ethanol, and the content is usually between 60% and 95%. One of the key steps in the manufacturing process is the preparation of the gel. Obtaining an agglomerate-free dispersion is essential to ensure a clear and bright gel after neutralization, but low-density powders (such as Carbopol) may be difficult to incorporate into liquids using traditional mixers, which can cause dust problems and aeration . The high-shear mixing of the Silverson mixer ensures rapid incorporation and dispersion of powders to form a clump-free solution while minimizing aeration.

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