3 ms·
The explanation I was always given when taking my biohazard/biosafety courses was that concentrations of EtOH or IPA greater than 70% evaporated too quickly to
by jszymborski 6y ago
The explanation I was always given when taking my biohazard/biosafety courses was that concentrations of EtOH or IPA greater than 70% evaporated too quickly to have the contact time you needed to sterilize e.g. work surfaces or (even worse) your gloved hand.
Apparently here they mention that higher conc. of water make it a better solvent... which I buy, but alcohols still aren't the worst solvent for e.g. hydrophillic membranes, so I think other factors like contact time are likely in play.
- lifeisstillgood 6y agoThe interesting one is solutions >91% - they kill cells immediately- but this coagulates the cell proteins forming a protective layer - dropping time to disinfect from ten seconds to over two hours. It's fascinating how deep one can dive in any subject and still produce useful actionable insights :-)
- thatcat 6y agoYea, I mean that is crucial information for using the product. You would think they would explain some of this on the bottle.