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a) 70% ethanol has been found to b most effective in killing microbes.Higher or lower concentrations may not b as effective. b) if u use 90% or absolute ethanol, it will evaporate fast and may not be much effective. c) using higher concentrations will leave its traces on the applied surfaces d) higher concentrations of ethanol are harmful to skin and makes it dry pretty a) 70% ethanol is most effective.higher or lower ones r not as effective b) it evaporates at a slow rate than 90% or absolute ethanol. therefore it is more effective and saves ur ethanol too.. c) higher concentrations alwez leave traces applied surfaces thus addind an unwanted reagent d) 70% ethanol is comparatively less harmful to ur hands.. higher concentrations makes ur skin dry..
Wiki User
∙ 16y ago
Wiki User
∙ 13y agobcz, 100% ethanol is more volatile when compared to 70% ethanol.... so that, the acting time of 70% ethanol is more and also 100% ethanol acts only on surface proteins whereas 70% ethanol acts on internal proteins.
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What is tincture of iodine and what is it used for?
Tincture of iodine is about 5% iodine, potassium iodide, and sodium iodide in ethanol and water. It's a topical antiseptic and disinfectant.
What is H2O2 used for?
H2O2 can used as Disinfectant.
Why 95 percent ethanol is used in laboratory?
So as not to 'waste' too much ethanol. To use 95 % ethanol allows some ethanol to be saved!
Does Bactranol stand for Bacterial Transformation Ethanol?
Yes. Bactranol or Bacterial Transformation ethanol can be used to convert cellulose directly into ethanol using complex marine bacterium that can convert waste green material into ethanol. This is a method of Ceetol production. Ceetol is the abbreviation for Cellulosic Ethanol. (CeEtOl - Cellulosic Ethanol OL - denotes Alcohol)
What is the boiling point of 70 percent ethanol?
The ethanol part of the mixture will boil at 78.4C, the rest of the substances will boil at their respective boiling points. This property provides the basis for fractional distillation, a method that can be used to refine crude oil into different types of products by heating the mixture to progressively higher boiling temperatures, then collecting and condensing vapor.
What is the purpose of ethanol in biology?
It's mainly used as a disinfectant and preservative.
What is disinfectant made of?
A disinfectant is used to kill microorganisms. Some ingredients of disinfectants are: water, surfactants, fragrances. calcium hypochlorite, ethanol and benzalkonium chloride.
Why is 70 percent ethanol used in rna extraction?
The density of 70% ethanol allows RNA settlement or say sedimentation in the vial.
Is 70 percent ethanol the same with 70 percent ethanol?
Absolutely, recent painstaking scientific research has showed that 70% ethanol is the same as 70% ethanol.
Why 70 percenet is used instead of 100 percent as disinfectant?
Disinfectants are usually mostly alcohol, Ethanol to be exact. Ethanol can only reach a purity degree of 95-96 percent in liquid form, with purer solutions existing only as a gas. 70 percent alcohol is sufficient to kill the bacteria, and a higher purity would not have any beneficial effect.
Is there a nail varnish remover that does not contain alcohol?
no,dear..the base of nail varnish remover is an ethanol..i.e. alcohol..ethanol is also used s disinfectant in biotechnology labs..
Why 70 percent ethanol is used for sterilization instead of 100 percent?
70% ethanol has been shown to have the highest killing ability of microbes. Also, 100% ethanol is toxic to the user
Why 70 percent percent ethanol used in labs?
70% is the most effective concentration to denature poteins so killing bacteria. At 95% the ethanol just evaporates and leaves the protein untouched. Below 70% does not denature proteins. It also makes the ethanol less flammable.
What is tincture of iodine and what is it used for?
Tincture of iodine is about 5% iodine, potassium iodide, and sodium iodide in ethanol and water. It's a topical antiseptic and disinfectant.
Why use the 70 percent ethanol?
to save the ethanol
What is 70 alcohol?
70 alcohol is liquid prepared by using 70 percentÊ by volume of pure concentrated ethanol. It is normally used for topical application.
What is use of ethanol?
Ethanol can be used as a solvent in the manufacture of varnishes and perfumes as a preservative for biological specimens, in the preparation pf essences and flavorings, in many medicines and drugs, and as a disinfectant and in tinctures. We us ethanol in our gas. It is found in Alcoholic Beverages, but by far the largest use is as a motor fuel. It is used as a biofuel called bioethanol, and as a grain alcohol in drinks.
