Why 70% ethanol & not 95% as disinfectant? - (Jun/12/2006 )
It also saves your ethanol
ha ha ha........
yeah, same reason my barman sells me diluted beer!
Just for curiosity's sake, but do you live in the US? it's just that I've heard things about American beer...
Did the barman add ice to the beer to dilute it?
American beer...if you're talking Bud, Coors, Miller, and that garbage...is pretty watered-down...as bad or worse than Canadian beer
microbrews, on the other hand, are sometimes excellent if you can find a good brewery. I am lucky enough to live where there are tons of little craft breweries that can turn out a good brew 
yes the only reason is 95% alcohol vapourizes quickly,
for relatively longer time 70% is est suited.....
for relatively longer time 70% is est suited.....
haha dig the avatar! the game rocks!
Look at:
Hugo, 1971 (he said: "vegetative cells stay alive for 24h in 96% EtOH")
Wallhäuser & Schmidt, 1967 (they said: "bacillus spores stay alive for 3 month in EtOH")
If you habe access to the papers, i'm interested to get them.
CU
Here is the PubMed link
I cannot find the link to the other paper.
What is the PMID? The post just contains a general link to pubmed
because the high concentration ethanol can solidificate the protein of bacterum and form a set of
film to inhibit ethanol inleakage into intracell and difficult to reach the effect of disinfectant, so, high concentration ethanol is usually worse effective than 70% ethanol.
I have heard that the penetrability of 95% ethanol is very weak.
The peak of the disinfecting power occurs around 70% ethanol; stronger and weaker solutions of ethanol have a lessened ability to disinfect. Solutions of this strength are often used in laboratories for disinfecting work surfaces. Ethanol kills organisms by denaturing their proteins and dissolving their lipids and is effective against most bacteria and fungi, and many viruses, but is ineffective against bacterial spores.
Alcohol does not act like an antibiotic and is not effective against infections by ingestion. Ethanol in the low concentrations typically found in most alcoholic beverages does not have useful disinfectant or antiseptic properties, internally or externally.
http://en.wikipedia.org/wiki/Ethanol