What is ethanol
Nov 05, 2025
Source: Cainiu Health
Dr. Liu Wenmin
Introduction
From the perspective of core applications, 75% ethanol can destroy the protein structures of bacteria and viruses, and is used for skin disinfection prior to injections or punctures, as well as for cleaning medical instruments. As a solvent, it can dissolve medications to produce tinctures and lotions that are easily absorbed. It can also be used for physical cooling, helping to reduce fever by evaporative heat loss. However, if the concentration is too high, it may cause protein coagulation, forming a protective layer that reduces disinfection effectiveness.
Under normal circumstances, ethanol is primarily used in medicine as a disinfectant, solvent, and auxiliary therapeutic ingredient. A 75% concentration of ethanol is commonly used in clinical settings for disinfecting skin and mucous membranes. For any medical usage concerns, it is recommended to consult healthcare professionals or refer to professional medical resources. The detailed analysis is as follows:
In terms of core applications, 75% ethanol can disrupt the protein structures of bacteria and viruses, making it suitable for skin disinfection prior to injections or punctures, as well as for cleaning medical instruments. As a solvent, it helps dissolve medications, enabling the preparation of tinctures and lotions for easier absorption. It can also be used for physical cooling, leveraging its volatility to remove heat and assist in reducing fever.
From the standpoint of usage characteristics, different concentrations yield different effects. Excessively high concentrations may cause protein coagulation, thereby reducing disinfection efficacy, while concentrations that are too low fail to effectively kill pathogens. Additionally, due to ethanol's volatility and irritant properties, contact with mucous membranes or damaged skin should be carefully controlled, and prolonged or extensive application should be avoided to prevent discomfort.
When using ethanol, adhere strictly to standard concentration guidelines and avoid applying it near eyes, mouth, or other sensitive areas. Store in a cool, well-ventilated place, away from flammable materials such as medical oxygen. Prepare and use according to established protocols to ensure accurate dosing. If symptoms such as skin redness, swelling, or itching occur, discontinue use immediately and inform healthcare personnel for appropriate management.
