City if LA’s main environmental laboratory has ramped-up production of hand sanitizer to help their fellow team members on the front lines during the pandemic.
To make 10 L of hand sanitizer, mix the following according to instructions below:
500 mL 100% Glycerin
8420 mL 95% Ethanol (EtOH)
1040 mL Deionized water
40 mL 30% Hydrogen Peroxide
10,000 mL (10L)
- Using a 500 mL graduated cylinder, measure 500 mL of glycerin and empty into the 10 L mixing carboy.
500 mL x 100% = 5% glycerin
- Using the 2000 mL cylinder, measure and pour 8420 mL of EtOH into the mixing carboy, that is (2000 mL x 4) + 420 mL, mixing between additions.
8420 mL x 95% = 80% Ethanol
- Cap and shake well until completely homogenized.
- Add 1040 mL deionized water into the mixing carboy. Use the cylinder marked DI for this. Mix well again.
- Add 40 mL of the hydrogen peroxide (30%) into the container, swirl to mix.
40 mL x 30% = 0.12% Hydrogen Peroxide
- Add 10-15 mL of tea tree or other essential oil for fragrance. Mix.
- Pour the mixed 10 L into the dispenser carboy with the spigot to dispense into smaller bottles.
Recipe contributed by
Leslie Sidio, Lab Manager ll, LA City Sanitation & Environment