Abstract
During the pandemic, healthy life behavior is needed in an attempt to reduce the transmission risk. One of them could be done by washing hands. Various human activities may not allow them to wash their hands frequently, for example, using hand sanitizer to wash hands. Hand sanitizer or Isopropyl based alcohol are recommended materials by WHO to clean bacteria on hands. Storing hand sanitizer for a longer time leads to inaccurate quality of the hand sanitizer to the written quality on the package. A simple alcohol meter is designed to test the liquid percentage of hand sanitizer or Isopropyl Alcohol (IPA) based alcohol. The required materials are easy to get from the surrounding environment. Thus, this device could be established at home without ignoring the health protocol. Although it has strength IPA-based alcohol or hand sanitizer is also risky if it is incorrectly used
Highlights
Hand sanitizer is a hand wash with antibacterial to hinder and kill bacteria (Sari, Retno& Isadiartuti, 2006)
Isopropyl Alcohol for antiseptic should be between 50-95%
Indirect hydration reacts to propene sulfuric acid and forms sulfuric ether mixtures. This process can use low-quality propene, dominantly found in the United State of America. This process is done by providing isopropyl alcohol from 1propanol because adding water or propene sulfuric acid is based on Markovnikov law
Summary
Hand sanitizer is a hand wash with antibacterial to hinder and kill bacteria (Sari, Retno& Isadiartuti, 2006). Two types of hand sanitizer are found: nonalcohol and alcohol-based hand sanitizer (Golin et al, 2020). Alcohol is mostly used as an antiseptic or disinfectant to disinfect clean skin surfaces. Among the alcohol-based formulations, ethanol has lower skin irritants. Isopropyl Alcohol for antiseptic should be between 50-95% This substance is flammable and irritates skins when used exaggeratedly (Purwati, 2016). Hand sanitizer is needed to prevent bacteria It is sold freely in the market in various brands and concentrations. Analysis of ethanol and IPA content could be done with an Alcohol meter. The device has a mechanism to measure based on the mixed density between alcohol and water. December 2021, Volume 7, Special Issue, 126-130 process It is to determine the alcohol content of the fermented product in volume percentage (% abv). Given the length of the plastic pipe is L (m) with weight wl (g) floating on the water with the water density of (g/cm3)
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