Can industrial alcohol be used for disinfection?

Jun 06, 2022 Source: Cainiu Health
Dr. Zhao Haiming
Introduction
Industrial-grade alcohol is a 95% ethanol solution; however, this concentration exhibits reduced efficacy against the novel coronavirus. A 95% ethanol solution causes rapid coagulation of proteins on the microbial surface, forming a protective membrane that shields the virus and thereby diminishes its disinfectant effect. In contrast, medical-grade alcohol consists only of ethanol and water, with no other harmful components.

In daily life, many people often wonder whether industrial-grade alcohol can be used as a substitute for medical alcohol for disinfection. So, can industrial alcohol be used for disinfection?

Can industrial alcohol be used for disinfection?

Firstly, industrial alcohol must not be used as a replacement for medical alcohol for disinfection. Medical alcohol refers to a 75% ethanol solution. This concentration effectively disrupts the proteins and nucleic acids (the genetic material) of the SARS-CoV-2 virus, thereby inactivating it and achieving disinfection.

Industrial alcohol, by contrast, is a 95% ethanol solution. At this higher concentration, its ability to inactivate the SARS-CoV-2 virus is actually reduced. Specifically, 95% ethanol rapidly coagulates surface proteins on microorganisms, forming a protective membrane that shields the virus—thus diminishing its disinfectant efficacy. Moreover, medical alcohol contains only ethanol and water, with no other harmful components; industrial alcohol, however, may contain unknown impurities or additives, posing potential health risks when used at home.

Additionally, prolonged use of industrial alcohol poses certain health hazards—it may irritate the digestive or respiratory tracts and cause irritation to the nasal passages or pharynx. In daily life, it is advisable to minimize activities that pollute the environment to avoid adverse health effects. Maintaining a healthy diet rich in fresh vegetables and fruits is also recommended. We hope this information has been helpful to you!

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