Can the smell of alcohol kill germs ??

Good afternoon, under normal circumstances, anhydrous ethanol is only simply volatilized and cannot produce sterilization efficacy, and must reach a concentration of more than 70%, so common liquor, red wine and solid fuel are not suitable for sterilization treatment. Alcohol sterilization requires a closed ethanol vapor form at a near-saturated concentration or the addition of other compounds such as acetic acid to the ethanol for synergistic effect. 75% of medical alcohol often contains trace amounts of acetaldehyde as a synergist.

The smell of alcohol is essentially ethanol.

Therefore, ethanol has a disinfection effect, so the smell of alcohol can also be disinfected to a certain extent, but if it is only a very light odor, then its concentration is too low, and the sterilization effect will be relatively poor.

Hello, glad you asked, wine has a certain bactericidal effect. Because of the alcohol content in it. It contains formaldehyde. Of course, sterilization can be bought specifically targeted.

The smell of alcohol is basically not sterilizing.

Alcohol can only be sterilized when it is at a certain concentration, and alcohol with a low concentration not only has no sterilization effect, but can be used as a carbon source for the growth of bacteria and promote the reproduction of bacteria. For example, Ma Yong of Beijing University of Technology studied the treatment effect of different carbon sources on denitrifying bacteria, and found that among the three carbon sources of methanol, ethanol and sodium acetate, ethanol was used as the best carbon source.

After the alcohol volatilizes, the surface of the adsorbed object, because the surface adsorbs water at the same time, forms a dilute alcohol aqueous solution, which is likely not only not sterilizable, but may also promote the reproduction of bacteria.

So why is 75% ethanol in medical alcohol not pure distiller's grains? Originally. When you disinfect with pure alcohol.

Due to the high concentration of alcohol. It quickly solidifies the proteins on the surface of the bacteria. As a result, a hard membrane is formed.

This dura has a protective effect against bacteria. Prevent further penetration of alcohol. So.

Concentrated alcohol is not as good as dilute alcohol. Mix some water with alcohol. The concentration of alcohol becomes thinner.

Dilute alcohol is not in a hurry to coagulate the proteins on the surface of bacteria. Instead, it infiltrates into the bacteria. And then the proteins in the whole bacterium are coagulated.

So as to achieve the goal of sterilization.

Liquor can also be sterilized, but there is a certain gap between the sterilization effect and medical alcohol!

It is because alcohol can absorb the water of bacterial proteins, dehydrate and decentralize them, so as to achieve the purpose of killing bacteria.