Uses of Methanol and Ethanol: Introduction, Explanation, and Sample Questions

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In this article, we have covered various topics for Methanol and Ethanol and many other topics about it. You will have to learn various uses of both Methanol and Ethanol discussed in the following article. However, you will understand the following topics in the article:

Read Also: Alcohols Phenols and Ethers


Summary

Methanol and ethanol are both alcohols. Each molecule of methanol has just one carbon, but each molecule of ethanol contains two carbons. Methanol (CH3OH) and ethanol (C2H5OH) are the most basic components of the main alcoholic family, with several uses in the fuel business. Methanol is commonly used to make acetic acid and formaldehyde. These chemicals can be utilized as forms of energy, although methanol is often employed for research, and its usage as a motor fuel in the United States has been largely phased out. Ethanol has a stronger position, yet its future as an engine fuel remains uncertain. Methanol is commonly used to make acetic acid and formaldehyde. Methanol is frequently added to ethanol as a thickener to prevent its recreation usage. This molecule is also utilized in several pipelines as a coolant (a substance that lowers the melting point of a fluid).

Methanol and Ethanol
Methanol and Ethanol

What is Methanol?

Methanol, sometimes known as "wood liquor," is a distinct liquid having the chemical formula CH3OH. It's a transparent fluid with polar characteristics that make it a good dissolving. It's also very flammable and ingesting it may be quite dangerous to individuals. Methanol was proven to be produced when acetate, the primary glucose in wood and other plants, was developed by tiny organisms. This ripening process produced a poisonous chemical that was used as a dissoluble for logical and mechanical objectives.

Methanol is a colourless liquid that heats at 64.96 degrees Celsius (148.93 degrees Fahrenheit) and freezes at 93.9 degrees Celsius (137 degrees Fahrenheit). It reacts with air to produce unstable combinations and burns with a nonluminous flame. In water, it is entirely flammable. Methanol has an identical smell to ethyl alcohol.

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Uses of Methanol

There are some important uses of Methanol listed below:

Uses of Methanol
Uses of Methanol
  • It can be used on the skin: Methanol can provide a cooling feeling on the skin. Methanol is a very important ingredient in after-sun lotions and moisturizers, which are designed to be applied to the skin after exposure to the sun. methanol is present in products that may be applied directly to the forehead to relieve the pain associated with migraines, such as cooling patches, and decreases the heated, painful sensation that overexposure to the sun can cause. Many individuals find the methanol cold effect to be uplifting and energizing. As a result, it's used as a component in toiletry and healthy skin products that aim to stimulate, renew, and revitalize the skin.
  • It reduces pain: When applied externally, methanol also has pain-relieving effects. It is hugely valuable in reducing pain associated with minor musculoskeletal symptoms like joint discomfort, strains, or muscular problems. Methanol and ibuprofen can be combined as pain relief gels and balms that are used externally.
  • It can be used at home: Methanol contains expectorant properties, which allow it to thin and discharge body fluids that accumulate in the respiratory system. Similarly, methanol breaths help alleviate nasal and throat congestion associated with colds.
  • It can be used as a fixative in liquid catalysts: Methanol is used mechanically as a fixative in liquid catalysts, various chemical liquids, some fillers, the manufacture of numerous polymers, and in liquor mixtures intended for regenerative or contemporary usage rather than consumption, and people began to supply methanol for mechanical reasons as well as a much faster method of combining carbon monoxide, carbon dioxide, and hydrogen gases along with a copper-based impulse that causes these natural resources to combine to form methanol.
  • It can be used as a component in formaldehyde: This methanol-derived chemical is frequently used in the production of plastics, including those used in research materials, car components, paints, explosives, and wrinkle-free counterfeit textures. Methanol may be used to create a variety of useful liquids, like acidic corrosive, dimethyl ether, and propylene, as used in radiator fluid. This allows the flames to spread quickly and capture various things.

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What is Ethanol?

Ethanol, often known as alcohol, ethyl liquor, and grain liquor, is a distinct, dry liquid that is commonly used in mixed beverages such as beer, wine, and schnapps. Because it dissolves quickly in water and other natural mixtures, ethanol is useful in a wide range of products, from personal care and beauty goods to paints and varnishes to gasoline. Ethanol is a natural by-product of plant maturity and may also be supplied by ethylene hydration.


Uses of Ethanol

There are some important uses of Ethanol listed below:

Uses of Ethanol
Uses of Ethanol
  • Personal care products: Ethanol is a common ingredient in many cosmetics and beauty products. It functions as an antiseptic to assist clean skin, as an addition to moisturizer to help ensure that ointment components don't split, and as a lubricant in spray to help the splashes stay on the hair.
  • Family unit Products: Ethanol combines well with water and several natural mixtures, and it is a good dissolvable for usage in paints, polishes, and varnish, as well as close to home care and household cleaners. Ethanol is also utilized as an ingredient in cleaning products since it is capable of knocking out living forms that may provide a risk to customers.
  • Ethanol as a Fuel: Ethanol is a commonly used petroleum additive and motor fuel. Some types of petroleum have been found to contain up to 25% ethanol. In certain related rockets, this molecule has also been utilized as rocket fuel. Ethanol is expected to lower carbon monoxide and nitrogen oxide pollutants when used as a fuel. Ethanol is utilized in direct-ethanol liquid fuels because it is abundantly accessible and has minimal toxicity and expense. Commercially available fuel cells, on the other hand, often employ methanol, hydrogen, or natural gas.

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Points to Remember

Following are some important points:

  • In laboratories, Ethanol is used as an ingredient in cooling baths as it has a melting point of -114.1oC.
  • Ethanol is also used a solvent for some analgesics and mouthwashes.
  • Methanol is used as PAGE (polyacrylamide gel electrophoresis) technique as a detaining agent.
  • When mixed with water, Methanol is used in high power engines.
  • Methanol is used for the production of hydrocarbons.
  • Ethanol is also known as ethyl alcohol.

Read Also: Reimer Tiemann Reaction


Sample Questions

Ques: Which organic compound is added to make ethanol unfit for drinking purposes? What is the name of the mixture formed?

Ans: Methanol is highly poisonous and is added in small amounts to ethanol to make it unfit for drinking purposes. This mixture is called methylated spirit or denatured alcohol.

Ques: Write a test to identify the presence of Ethanoic acid?

Ans: Dip a strip of blue litmus paper in the solution of Ethanoic acid. Its color changes to red and Ethanoic acid gives a sweet-smelling compound called ester when treated with Ethanol

Ques: Why conversion of ethanol into ethanoic acid is an oxidation reaction?

Ans: Ethanoic acid has one or more O2atoms and two hydrogen atoms less than ethanol. Loss of hydrogen is known as oxidation and gain of oxygen is known as reduction. Therefore, it is an oxidation reaction.

Read Also: Carbon and Its Compounds Important Questions

Ques: What are enzymes? Name the enzymes required for the fermentation of sugarcane to ethanol?

Ans: An enzyme is a protein molecule in cells that work as a biological catalyst. In the process of fermentation of sugar into ethanol, two enzymes are used.

C12H22O11+H2O−→−−−−−(Invertase)C6H12O6+C6H12O6

Sugar glucose fructose

C6H12O6−→−−−−(Zymase)2C2H5OH+2CO2

Glucose and Fructose

Ques: How can ethanol and Ethanoic acid be differentiated based on their physical and chemical properties?

Ans: Based on the physical properties:

Based on the chemical properties:

  • Ethanoic acid reacts with sodium hydrogen carbonate liberating carbon dioxide.
  • Ethanol does not react with sodium hydrogen carbonate liberating carbon dioxide.

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CBSE X Related Questions

1.
What is the difference between the manner in which movement takes place in a sensitive plant and the movement in our legs?

      2.

      A milkman adds a very small amount of baking soda to fresh milk.
      (a) Why does he shift the pH of the fresh milk from 6 to slightly alkaline?
      (b) Why does this milk take a long time to set as curd?

          3.
          Why does the sky appear dark instead of blue to an astronaut?

              4.
              Write the balanced chemical equations for the following reactions. 
              (a) Calcium hydroxide + Carbon dioxide \(→\) Calcium carbonate + Water 
              (b) Zinc + Silver nitrate \(→\) Zinc nitrate + Silver 
              (c) Aluminium + Copper chloride \(→\) Aluminium chloride + Copper 
              (d) Barium chloride + Potassium sulphate \(→\) Barium sulphate + Potassium chloride

                  5.
                  Show how you would connect three resistors, each of resistance 6 Ω, so that the combination has a resistance of 
                  1. 9 Ω
                  2. 4 Ω

                      6.
                      Draw the structure of a neuron and explain its function.

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