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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..
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Taiga
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Devin70% 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.
