Isopropyl Alcohol 4 fl oz, 16 fl oz, 32 fl oz, 1 Gallon in 70%, 91% or 99%
The presence of water is a crucial factor in destroying or inhibiting the growth of pathogenic microorganisms with isopropyl alcohol. Water acts as a catalyst and plays a key role in denaturing the proteins of vegetative cell membranes.
70% Isopropyl Alcohol solutions penetrate the cell wall more completely which permeates the entire cell, coagulates all proteins, and therefore the microorganism dies. Extra water content slows evaporation, therefore increasing surface contact time and enhancing effectiveness.
Isopropyl alcohol concentrations over 91% coagulate proteins instantly. Consequently, a protective layer is created which protects other proteins from further coagulation.
Solutions > 91% of Isopropyl Alcohol does kill bacteria, but sometimes requires longer contact times for disinfection, and enables spores to lie in a dormant state without being killed.
70% isopropyl alcohol is the most commonly used disinfectant in pharmaceutical industries. The important thing is that only 70% solution of isopropyl alcohol acts as a disinfectant killing all surface microorganisms. It is used to disinfect hands and equipment surfaces in pharmaceuticals.
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