Why is ethanol water mixture used in saponification? Why is ethanol added to soap? Water and oil are unable to mix, ethanol has the ability to dissolve on a partial level in water and oil. This process assists the reaction of fatty acid and sodium hydroxide to produce water, soap, salt and fatty acids.
Full Answer
Why is it important to wash the sample with ethanol?
Because you are washing any impurities off of it. The water dissolves some impurities, and the ethanol will dissolve other impurities. Doing both rinses will get the purest sample.
Why do I have to use ethanol and distilled water to rinse?
Originally Answered: Chem lab: Why do I have to use ethanol and distilled water to rinse solid copper that I will have filtered from a solution of zinc chloride and zinc sulfate? Because you are washing any impurities off of it. The water dissolves some impurities, and the ethanol will dissolve other impurities.
Does ethanol dry faster than water on a copper surface?
Now the surface is covered in ethanol only. However, it is volatile, so drying is much quicker than if you had to wait for water to evaporate from the copper piece. Plastic surgeon shares one weird way to fill in wrinkles at home.
Why do you wash ethanol?
How to get fresh air without evaporation?
Why extract copper but say zinc salts?
What happens when you wash an object with alcohol?
Is a compound water soluble?
Do you have to remove ions from copper when filtering?
Does copper sulfate have to be dissolved in water?
See 4 more
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Why do we use ethanol in saponification?
Ethanol increases the catalyst solubility in the oil-ethyl ester phase, thus accelerating the saponification reaction.
Why did we use a mixture of ethanol and water to perform the reaction between the oil and NaOH?
A mixture of ethanol and water is needed to perform a reaction between oil and sodium hydroxide because ethanol increases the solubility of catalysts in the oil-ethyl ester phase. Also, ethanol acts as an extraction solvent.
What is the purpose of ethanol in soap making?
Ethanol is used in the process of making bars of hard soap. Ethanol helps the chemical reaction between the sodium hydroxide solution and the melted fatty oils. It is most often used when making glycerin soap.
Why is ethanol added to the reactants in the saponification reaction?
Answer. Answer: Ethanol is added in order to make provide more 'contact' between the triglycerides in the oil and the aqueous solution of NaOH, and speed up the reaction. Explanation: Oils or fats are usually not soluble in water.
What is the role of ethanol in the reaction mixture?
Since ethanol has a certain degree of solubility in both polar and nonpolar environments, it facilitates the reaction between the aqueous base solution.
Why is ethanol added to reaction mixture of fat and base in making of soap?
Why is ethanol added to the reaction mixture of fat and base in the making of soaps? So the fatty acids will partially mix with water which the base will dissolve in and to maintain volume.
Does ethanol react with soap?
A soap/water emulsion is cloudy (because of the micelles), not transparent, with bubbles at the surface. In contrast, soaps and detergents actually dissolve in ethanol and isopropanol.
Which alcohol is good for soap making?
Isopropyl AlcoholIsopropyl Alcohol or Rubbing Alcohol, as it is commonly known, has many uses. For the soap maker it is most useful when spritzing your newly poured melt and pour soaps. Helping to remove surface bubbles, but it is also a powerful solvent with many useful applications.
What type of alcohol do you use for soap making?
Isopropyl AlcoholWhen making both cold process and melt and pour soap, a spray bottle of 99% Isopropyl Alcohol is helpful. Also known as rubbing alcohol, isopropyl alcohol helps to prevent soda ash on cold process soap, and helps layers stick together when working with melt and pour.
Does saponification require water?
Saponification is the name of the chemical reaction that produces soap. In the process, animal or vegetable fat is converted into soap (a fatty acid) and alcohol. The reaction requires a solution of an alkali (e.g., sodium hydroxide or potassium hydroxide) in water and also heat.
Why does saponification require stirring?
Since water and oil do not mix, this mixture had to be continuously stirred and heated sufficiently to keep the fat melted. Slowly, a chemical reaction called saponification would take place between the fat and the hydroxide which resulted in a liquid soap.
Which two molecules are required reactants for a saponification reaction?
Generally, it occurs when triglycerides are reacted with potassium or sodium hydroxide (lye) to produce glycerol and fatty acid salt, called 'soap'.
What happens when ethanol reacts with sodium hydroxide?
When ethanol (C2H5OH) is added to aqueous sodium hydroxide (NaOH), no reaction occurs. This is because aqueous sodium hydroxide contains sodium ions (Na+) and hydroxide ions (OH−).
Does NaOH dissolve in ethanol?
Sodium hydroxide is soluble in water, methanol, ethanol, glycerol, but insoluble in most ethers. Alcoholic solutions of sodium hydroxide will oxidize in air, turning brown.
How does ethanol react with sodium write a balanced chemical equation?
The chemical equation of this reaction is as follows: 2C2H5OH+2Na⟶2C2H5O−Na++H2.
Why is the product of saponification a salt?
why is the product of saponification a salt? it is because the product of base hydrolysis of a fatty acid is the production of a salt of the acid, or carboxylate in this case.
What if, instead of using distillated water, we use ethanol as a ...
Read 9 answers by scientists to the question asked by Albenc Nexha on Nov 17, 2015
Question about washing product | Physics Forums
you wash your products with solvents that they are not soluble in in order to purify them. on the other hand, if you are filtering out stuff you don't want, you wash what you filter off with a solvent that will dissolve your desired product in order maximize your yields. methanol and ether are excellent solvents a lot of times for organic sythesis.
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Why is the solid product washed with ice-cold solvent during in the ...
$\begingroup$ Recrystallisation may be done in a multitude of ways, depending on your particular situation; the product may be washed with ice-cold solvent, or with another solvent that would supposedly dissolve the impurities but not the product, or not washed at all. You may call it weird, but then again, pretty much all chemistry is weird in the same sense, or worse.
Question : What is the purpose of washing the solid product with ...
Science; Chemistry; Chemistry questions and answers; What is the purpose of washing the solid product with ethanol? Explain your reasoning. Question: What is the purpose of washing the solid product with ethanol? Explain your reasoning.
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Why do you wash ethanol?
Because you are washing any impurities off of it. The water dissolves some impurities, and the ethanol will dissolve other impurities. Doing both rinses will get the purest sample. The water wash must be done first because the ethanol will remove any residual water and the ethanol will evaporate quickly leaving a pure sample.
How to get fresh air without evaporation?
The solution here is to use a fish-tank air pump and bubble the air through water via a Dreschel bottle before it enters your chamber. This way the incoming air is water-saturated and will not dry out your chamber.
Why extract copper but say zinc salts?
You extract copper but you say zinc salts. The most likely reason is to remove traces of raffinate. You don't say if the solvents a mixed or used separately. You don't say if there are any organics involved, for example copper can be extracted using kerosene media, or if any ligands were involved, or even the pH.
What happens when you wash an object with alcohol?
When a wet object is washed with an alcohol, water mixes with it. Now the surface is covered in ethanol only. However, it is volatile, so drying is much quicker than if you had to wait for water to evaporate from the copper piece. Sponsored by ZenKey.
Is a compound water soluble?
All four compounds are water soluble (at least reasonably so) and I don’t see a large force to drive the reaction to completion. For example, if one of the the products were a gas or insoluble in the solvent being used, that product would remove itself from the mixture and leave the other product in solution.
Do you have to remove ions from copper when filtering?
You should be somewhat more specific. So, if you filter the copper-covered object, there will always be some ions present on the surface. If they will react with other reagents that will be used later on, or if some instrumental analysis method has to be applied, you might need to remove them.
Does copper sulfate have to be dissolved in water?
Also ,the Copper Sulphate has to be in Aqueous State ,dissolved in water in order for the reaction to occur , so in order to get the Dry sample (Anhydrous Salt) , You will have to use Evaporation To Dryness , if not , Crystallisation to get the Hydrated Copper Sulphate Crystals.
Why do you wash ethanol?
Because you are washing any impurities off of it. The water dissolves some impurities, and the ethanol will dissolve other impurities. Doing both rinses will get the purest sample. The water wash must be done first because the ethanol will remove any residual water and the ethanol will evaporate quickly leaving a pure sample.
How to get fresh air without evaporation?
The solution here is to use a fish-tank air pump and bubble the air through water via a Dreschel bottle before it enters your chamber. This way the incoming air is water-saturated and will not dry out your chamber.
Why extract copper but say zinc salts?
You extract copper but you say zinc salts. The most likely reason is to remove traces of raffinate. You don't say if the solvents a mixed or used separately. You don't say if there are any organics involved, for example copper can be extracted using kerosene media, or if any ligands were involved, or even the pH.
What happens when you wash an object with alcohol?
When a wet object is washed with an alcohol, water mixes with it. Now the surface is covered in ethanol only. However, it is volatile, so drying is much quicker than if you had to wait for water to evaporate from the copper piece. Sponsored by ZenKey.
Is a compound water soluble?
All four compounds are water soluble (at least reasonably so) and I don’t see a large force to drive the reaction to completion. For example, if one of the the products were a gas or insoluble in the solvent being used, that product would remove itself from the mixture and leave the other product in solution.
Do you have to remove ions from copper when filtering?
You should be somewhat more specific. So, if you filter the copper-covered object, there will always be some ions present on the surface. If they will react with other reagents that will be used later on, or if some instrumental analysis method has to be applied, you might need to remove them.
Does copper sulfate have to be dissolved in water?
Also ,the Copper Sulphate has to be in Aqueous State ,dissolved in water in order for the reaction to occur , so in order to get the Dry sample (Anhydrous Salt) , You will have to use Evaporation To Dryness , if not , Crystallisation to get the Hydrated Copper Sulphate Crystals.