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Just for the record, research shows that a 40% w/w solution of Isopropanol in water is the best antibacterial, rather than a 90% one.
IPA has a need to bind to water molecules, and each gram of alcohol needs one and a half grams of water to satisfy its need for spare electron density.
This amount of water means that the alcohol can get into bacterial cells and disrupt their aqueous and lipid chemistry, whereas very pure IPA can only affect lipid chemistry.
It will also prevent the burning sensation a little, as it calms the tendency to dehydrate the tissue in the wound.
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Overhead, the Albatross hangs motionless upon the air,
And deep beneath the rolling waves,
In labyrinths of Coral Caves,
The Echo of a distant time
Comes willowing across the sand;
And everthing is Green and Submarine
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