NOTE: We describe how to make a hand sanitiser based on the WHO formula described in this article: WHO Recommended Handrub Formulations. You can also read here the formula 2 recommended by the
WHO.
According to the WHO, alcohol-based hand sanitisers are the only hand sanitisers that work effectively and quickly against potentially harmful micro-organisms on the hands.
MATERIALS:
- Alcohol (Ethanol). 96%. This is the common alcohol you can find in a pharmacy.
- Hydrogen Peroxide 3%. The hydrogen peroxide you can find in pharmacies/supermarkets.
- Glycerine 98%. You can find it at Amazon or in Alquera.
- Canister (sterilised in boiling water)
QUANTITIES TO BE MIXED FOR 1 LITRE OF DISINFECTANT
- 833ml of Alcohol 96%
- 42ml of Hydrogen Peroxide 3%
- 15ml of de Vegetable Glycerin.
WHAT ROLE DOES EACH COMPONENT PLAY?
(The information shown is a translation of this WHO document: WHO Recommended Handrub Formulations
ALCOHOL:
Alcohol-based hand sanitisers are currently the only hand sanitisers that work effectively to inactivate a broad spectrum of harmful microorganisms. They are inexpensive and can be easily brought to the point of application.
HYDROGEN PEROXIDE 3%.
The small concentration of hydrogen peroxide in the formula is to remove contaminated spores in the solution. It is not an active component on the hands.
VEGETABLE GLYCERIN
Glycerine is used as a humectant and moisturiser. Maintaining the % of glycerine is important as it increases the stickiness of the active component alcohol on the hands.
OTHER INGREDIENTS
It is better not to add fragrances and other components in this formula.