2007-01-10 20:26:39 · 5 answers · asked by shygirl 1 in Science & Mathematics ➔ Chemistry
(27) Alcohols
(a) Alcohols work best as 70 to 99% mixtures with water
(b) Alcohol-water mixtures are additionally more penetrating than pure alcohols
(c) Either ethanol or isopropyl (rubbing) alcohol may be employed for disinfecting
(d) Alcohols are especially appropriate for application to sites in which their propensity to evaporate away is convenient (e.g., to disinfect skin prior to injection)
(e) The down side of alcohols is that they are not terribly penetrating nor capable of killing endospores or other resistant cells
(f) Alcohols should not be applied to wounds since they can cause tissue damage
(g) [alcohol and disinfection (Google Search)] [index]
2007-01-10 20:40:44 · answer #1 · answered by Kalooka 7 · 0⤊ 0⤋
(1) Pure cultures of bacteria have been challenged with different
concentrations of alcohol [in water] and it has been found that 70% works better than 95%.
(2) Lipids are more soluble in 70% than 95% so that the oily base
that the bacteria stick to is more easily penetrated and the bacteria more easily removed by using 70% alcohol rather than 95%.
70% ALCOHOL IS MORE EFFECTIVE AS A DISINFECTANT.
2007-01-11 15:57:19 · answer #2 · answered by BB 7 · 1⤊ 0⤋
I think it's the 70% stuff since the 95% would be to strong to use I guess for cleaning. Also I never seen alcohol sold higher then 80%, But I think the 70% would be the best.
2007-01-11 04:36:16 · answer #3 · answered by Raki 3 · 0⤊ 0⤋
neither! shame on you for wanting to waste perfectly good alcohol on cleaning lol !! just kidding
I would say 95% not sure why just because it is stronger probably, stick to domestos its already made up for you xx
2007-01-11 04:31:49 · answer #4 · answered by Anonymous · 0⤊ 0⤋
The stronger the alcohol, the more bacteria it can kill and quicker as far as I remember.
2007-01-11 04:51:24 · answer #5 · answered by MI6 W 2 · 0⤊ 0⤋