Q : write products formed when polyester is heated with aqueous sodium

In summary, when polyester is heated with aqueous sodium hydroxide, it undergoes hydrolysis and forms alcohol and carboxylic acid. The presence of enough base can lead to the neutralization of the acid, resulting in either -OH or -ONa depending on the amount of sodium hydroxide present.
  • #1
charlotta
8
0
Q : write products formed when polyester is heated with aqueous sodium hydroxide

I know is hydrolysis , and the product will be alcohol and carboxylic acid ... but will the -OH in carboxylic acid replaces with -ONa or not ??
It say heated with , but doesn't mean react .. so does heated means react ?
 
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  • #2


Heated means heated. However, reactions are faster at elevated temperatures.

If there is enough base it will neutralize the acid.
 
  • #3


thank you ..

so what you mean is that to determine whether is -OH or -ONa , we have to know the amount of sodium hydroxide ?
 
  • #4


That would be the best approach.
 
  • #5


ok.. thank you ...
 

FAQ: Q : write products formed when polyester is heated with aqueous sodium

What happens when polyester is heated with aqueous sodium?

When polyester is heated with aqueous sodium, it undergoes a chemical reaction called hydrolysis. This results in the breakdown of polyester into smaller molecules known as monomers, which can then react with sodium ions to form new products.

What are the products formed during the reaction between polyester and aqueous sodium?

The products formed when polyester is heated with aqueous sodium include sodium ethylene glycolate, sodium terephthalate, and water. These compounds are formed through the hydrolysis of polyester and subsequent reactions with sodium ions.

3. How does the heating temperature affect the products formed in the reaction between polyester and aqueous sodium?

The heating temperature can greatly affect the products formed in the reaction between polyester and aqueous sodium. At higher temperatures, the hydrolysis reaction is more rapid and can result in a higher yield of products. However, excessive heating can also lead to the breakdown of the desired products into smaller, undesirable compounds.

4. What are the properties of the products formed when polyester is heated with aqueous sodium?

The properties of the products formed during the reaction between polyester and aqueous sodium can vary depending on the specific compounds formed. Generally, these products are water-soluble and have lower melting points compared to polyester. They may also have different chemical and physical properties, such as increased flexibility or different reactivity towards other chemicals.

5. Are there any safety concerns to consider when working with the reaction between polyester and aqueous sodium?

Yes, there are some safety concerns to consider when working with the reaction between polyester and aqueous sodium. Aqueous sodium is a strong base and can cause skin and eye irritation, so proper protective equipment should be worn. The reaction may also produce heat and release gases, so it should be carried out in a well-ventilated area.

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