Can diluted industrial alcohol be used for disinfection?
Sep 04, 2023
Source: Cainiu Health
Dr. Yang Shuwen
Introduction
In general, industrial alcohol should not be used for disinfection even after dilution. Industrial alcohol typically has a purity of 95% or 99%, and besides ethanol, it contains significant amounts of impurities such as methanol and formaldehyde. Even when diluted, it remains unsuitable for disinfection purposes. For wound disinfection, it is recommended to seek medical attention promptly and use pharmaceutical-grade alcohol under the guidance of a healthcare professional.
In general, industrial alcohol should not be used for disinfection even after dilution. Industrial alcohol typically has a purity of 95% or 99%, and besides ethanol, it contains significant amounts of impurities such as methanol and formaldehyde. Even when diluted, it remains unsuitable for disinfection purposes. The detailed explanation is as follows:
The active ingredient in both industrial and edible alcohol is ethanol. However, due to different intended uses, their manufacturing processes differ significantly. Industrial alcohol, with purities of 95% or 99%, contains impurities including methanol, aldehydes, and organic acids, which are highly toxic. Therefore, it must not be used in the production of alcoholic beverages or for disinfection.
If diluted industrial alcohol is sprayed on surfaces or used to wipe objects, the harmful substances it contains—such as methanol—can enter the human body through the respiratory tract or skin, causing toxic reactions. Rather than achieving disinfection, its use may instead harm human health. In severe cases, these substances can damage the nervous or blood systems and lead to illness. Therefore, diluted industrial alcohol should not be used for disinfection.
For wound disinfection, it is recommended to seek medical attention promptly and use pharmaceutical-grade alcohol under a doctor's guidance.
