2006-12-18 02:12:55 · 4 answers · asked by chandra l 1 in Science & Mathematics ➔ Medicine
Disinfecting power peaks at around 70% ethanol (ethyl alcohol); stronger and weaker concentrations have less ability to disinfect. Ethyl alcohol kills organisms by denaturing proteins and dissolving lipids, and so works on most bacteria and fungi, and many viruses.
http://en.wikipedia.org/wiki/Ethanol#Other_uses
2006-12-18 03:31:02 · answer #1 · answered by Jerry P 6 · 2⤊ 1⤋
70% alcohol can cause maximum ionization of bacteria.this property is restricted to 70% & even alcohol having strength above 70% has less ionizing power.
2006-12-19 07:24:02 · answer #2 · answered by carol 2 · 0⤊ 0⤋
We use alcohol because it have many praporty like priservation it is a good vicheal and its help in many reaction and also kill bactaria l
2006-12-19 02:26:17 · answer #3 · answered by Anonymous · 0⤊ 0⤋
coz alcohol dissolves the lipids in the bacterial cell wall and thus kills it!
2006-12-18 10:26:59 · answer #4 · answered by mona 1 · 0⤊ 1⤋