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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..
70% ethanol is commonly used as a disinfectant because it is effective at killing a wide range of microorganisms, including bacteria, viruses, and fungi. The 70% concentration is optimal as it allows for better penetration and denaturation of proteins in the microorganisms, leading to more effective disinfection. Additionally, 70% ethanol is less likely to evaporate quickly compared to higher concentrations, ensuring longer contact time for better disinfection.
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What is tincture of iodine and what is it used for?
Tincture of iodine is a disinfectant solution containing iodine and alcohol, used to prevent infections in minor cuts and scrapes. It has antiseptic properties that help kill bacteria and fungi on the skin. It should be used externally only and not ingested.
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.
Meaning and use of alcohol denat?
Alcohol denat is denatured alcohol containing additional chemicals to make it unfit for consumption. It is used in cosmetics, perfumes, and household products as a solvent or disinfectant due to its ability to evaporate quickly and kill germs. Avoid using it on broken skin or near the eyes and in well-ventilated areas due to its high alcohol content.
Is ethanol a metal?
No, ethanol is not a metal. It is a type of alcohol that is commonly used as a fuel additive or solvent. Ethanol is a compound made up of carbon, hydrogen, and oxygen atoms.
What is H2O2 used for?
Hydrogen peroxide (H2O2) is commonly used as a disinfectant to clean wounds and surfaces. It is also utilized in hair bleaching and as a whitening agent for teeth. Additionally, it is employed in industrial processes such as paper and textile bleaching.
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.
What are the uses of ethanol?
Ethanol is commonly used as a fuel additive to reduce emissions and improve octane ratings in gasoline. It is also used as a solvent in pharmaceuticals, perfumes, and personal care products, and as a disinfectant in hand sanitizers and cleaning products. Additionally, ethanol is used in the production of alcoholic beverages.
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..
Where is ethanol used?
Ethanol is commonly used as a fuel additive in gasoline to increase octane and reduce emissions. It is also used in the production of alcoholic beverages, as a solvent in pharmaceuticals, and as a disinfectant in household products. Additionally, ethanol is used in the manufacturing of personal care products and as a feedstock in the production of chemicals.
Is 70 percent ethanol is an effective disinfectant for prions?
No, 70 percent ethanol is not effective in disinfecting prions. Prions are highly resistant to common disinfection methods, including alcohol-based solutions. Specialized procedures involving harsh chemicals or autoclaving at high temperatures are required to effectively deactivate prions.
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 are the uses of ethanol in microbiology lab?
Ethanol is commonly used in microbiology labs as a disinfectant to sterilize surfaces, equipment, and lab benches. It is also used for flame sterilization of inoculating loops and needles. Additionally, ethanol is used in DNA and RNA extraction protocols to precipitate nucleic acids.
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.
