| Ingredients | Strength(in %) | How Much To Use |
|---|---|---|
| IsoPropyl Alcohol | ||
| Hydrogen Peroxide | ||
| Glycerine | ||
| Water (to make it total) |
We have designed this calculator based on WHO formulation because in this current pandemic when there is a serious lack of off-the-shelf hand sanitizers, we found that there was no easy way to get the calculations right because in stores we aren’t always able to get our hands on 99% isoproprl alcohol or exactly 3% hydrogen peroxide. The existing blogposts all either mention imperial “use 3/4 cups plus 5 teaspoons” and adjust accordingly or end up suggesting using non recommended formulations like using vodka instead of isopropyl alcohol and even 1/4 cup alcohol and 3/4 aloe vera gel. We are open sourcing this project on github and everyone is invited to help improve this tool. We have made certain assumptions including the current default of 99%, 91%, 70% and 60% alcohol strength that are available easily in the market. Same for Hydrogen Peroxide. We are not chemists. Anyone with expertise in this field should help us to make improvements in our formula if ours is not perfect. As a final precaution, do your own research before confirming your values with our tool. This is a work-in-progress alpha release. Final calculations are based on http://ataridogdaze.com/science/diy-hand-sanitizer.html