3 ms·
Do what I did. eBay isopropyl alcohol and some vegetable glycerin. Should cost you less than 10GBP per litre and mix at a 70/30 ratio.
by kn100 7y ago
Do what I did. eBay isopropyl alcohol and some vegetable glycerin. Should cost you less than 10GBP per litre and mix at a 70/30 ratio.
- mrob 7y ago30% glycerol seems very high. The WHO publishes recipes for hand sanitizers with only 1.45% glycerol by volume: https://www.who.int/gpsc/5may/Guide_to_Local_Production.pdf https://www.who.int/gpsc/5may/Guide_to_Local_Production.pdf
- kragen 7y agoGlycerin is not a very good thickening agent for this purpose, but if it's the only one you're using, you're going to need more than 1.45% of it.