0
its cheap, has high temp range of 100 degrees, nonflammable, nontoxic
Wiki User
∙ 11y ago
Water is a common, inexpensive, and environmentally friendly solvent for recrystallization. It is effective for a wide range of compounds and is non-toxic. Water's high polarity allows for efficient solvation and purification of compounds.
Wiki User
∙ 14y agoAbove what?
Add your answer:
Earn +20 pts
When doing a solvent pair recrystallization which of the following pairs will work ethanol and water methylene chloride and water dimethylformamide and diethyl ether?
Ethanol and water is a suitable solvent pair for recrystallization. Methylene chloride and water, as well as dimethylformamide and diethyl ether, are not typically used together as solvent pairs for recrystallization due to their different chemical properties and solubility characteristics.
Explain why during the recrystallization of p-dibromobenzene the turbidity of the hot solution was used as an indicator for the ratio of ethanol to water used?
The turbidity of the hot solution during recrystallization can indicate the saturation level of the solvent system. If the solution becomes turbid at a certain ratio of ethanol to water, it suggests that the solvent system is nearing its saturation point for dissolving the compound. This can help determine the ideal solvent ratio for recrystallization to achieve maximum yield and purity of the compound.
Is Chloroform a good solvent for recrystallization in acetanilide?
Chloroform is not a commonly used solvent for recrystallization of acetanilide. It is more commonly used for dissolving non-polar or slightly polar compounds. In the case of acetanilide, solvents such as ethanol or ethyl acetate are often preferred for recrystallization.
Why is water a good solvent for the recrystallization of acetanilide?
Water is a good solvent for recrystallization of acetanilide because acetanilide is more soluble in hot water than in cold water, allowing for the compound to be dissolved and then slowly recrystallize as the solution cools. Water is also polar, like acetanilide, which helps dissolve the compound effectively. Additionally, water is a safe and non-toxic solvent for this process.
Is benzhydrol suitable for recrystallization of bezhydrol?
Yes, benzhydrol can be suitable for recrystallizing benzhydrol. Recrystallization is a common technique used to purify solid compounds by dissolving them in a suitable solvent and allowing them to slowly crystallize out. It is important to choose a solvent in which the compound is more soluble at high temperatures and less soluble at low temperatures to achieve successful recrystallization.
When doing a solvent pair recrystallization which of the following pairs will work ethanol and water methylene chloride and water dimethylformamide and diethyl ether?
Ethanol and water is a suitable solvent pair for recrystallization. Methylene chloride and water, as well as dimethylformamide and diethyl ether, are not typically used together as solvent pairs for recrystallization due to their different chemical properties and solubility characteristics.
What is a good solvent for recrystallization of sodium benzoate?
A good solvent for recrystallization of sodium benzoate is water, as sodium benzoate is highly soluble in water. Additionally, ethanol can also be used as a co-solvent to enhance solubility and increase the purity of the recrystallized product.
Explain why during the recrystallization of p-dibromobenzene the turbidity of the hot solution was used as an indicator for the ratio of ethanol to water used?
The turbidity of the hot solution during recrystallization can indicate the saturation level of the solvent system. If the solution becomes turbid at a certain ratio of ethanol to water, it suggests that the solvent system is nearing its saturation point for dissolving the compound. This can help determine the ideal solvent ratio for recrystallization to achieve maximum yield and purity of the compound.
What is the recyrstallization solvent for benzocaine?
Common recrystallization solvents for benzocaine include ethanol and ethyl acetate. The choice of solvent will depend on the solubility of benzocaine in the solvent at different temperatures. It is recommended to perform a solubility test to determine the most suitable solvent for recrystallization.
Is Chloroform a good solvent for recrystallization in acetanilide?
Chloroform is not a commonly used solvent for recrystallization of acetanilide. It is more commonly used for dissolving non-polar or slightly polar compounds. In the case of acetanilide, solvents such as ethanol or ethyl acetate are often preferred for recrystallization.
Why is water a good solvent for the recrystallization of acetanilide?
Water is a good solvent for recrystallization of acetanilide because acetanilide is more soluble in hot water than in cold water, allowing for the compound to be dissolved and then slowly recrystallize as the solution cools. Water is also polar, like acetanilide, which helps dissolve the compound effectively. Additionally, water is a safe and non-toxic solvent for this process.
Is benzhydrol suitable for recrystallization of bezhydrol?
Yes, benzhydrol can be suitable for recrystallizing benzhydrol. Recrystallization is a common technique used to purify solid compounds by dissolving them in a suitable solvent and allowing them to slowly crystallize out. It is important to choose a solvent in which the compound is more soluble at high temperatures and less soluble at low temperatures to achieve successful recrystallization.
What solvent is used to recrystallize the salicylic acid?
Ethanol is commonly used as a solvent to recrystallize salicylic acid due to its ability to dissolve the compound at high temperatures and then allow for recrystallization as it cools.
Explain why crystallisation would not be suitable for purifying water?
An ideal crystallization solvent should be unreactive, inexpensive, and have low toxicity.It is also important that the solvent have relatively low boiling point as its best if the solvent readily evaporate from the solid once recovered.For most organic compounds, water is not a good recrystallization solvent.
What is the disadvantage of having excess solvent during recrystallization?
Having excess solvent during recrystallization can result in a lower concentration of the desired compound in the final crystal product. This can reduce the purity of the compound and make it more difficult to separate from impurities. Additionally, excess solvent can increase the time required for the recrystallization process to complete.
Why is water a poor solvent for the recrystallisation of iodine?
Water is a poor solvent for the recrystallization of iodine because iodine is only slightly soluble in water. As a nonpolar solvent, water cannot effectively dissolve the polar iodine molecules, resulting in low solubility and poor recrystallization efficiency. Other solvents, such as ethanol or acetone, are more suitable for recrystallizing iodine due to their ability to dissolve iodine more effectively.
Why is the product formed from recrystallization sometimes contaminated with impurities?
The product formed from recrystallization can be contaminated with impurities if they are more soluble in the solvent used for recrystallization compared to the desired compound. In this case, the impurities will remain in the solution while the desired compound forms crystals, leading to impurity inclusion in the final product. Proper choice of solvent and recrystallization conditions can help minimize impurity contamination.
