Temperature needed for Dehydration and Hydration? (1 Viewer)

[valval]

I searched up that the temperature was around 300 degrees celcius for hydration but my teacher put a question mark next to it so now I'm unsure of it. I've tried searching for the temperature needed for hydration, no luck. So now I turn to you guys. What is the temperature needed for dehydration and hydration?

 

[oh well]

You don't need to know the temperature, you just need to know the catalyst used and why it is used

 

[oh well]

PS: lol, I didn't read your thread, I thought it was hydration of ethene and dehydration of ethanol ...

 

[nightweaver066]

IIRC from Jacaranda, 350C for dehydration of ethanol and 300C for hydration of ethene.

 

[valval]

PS: lol, I didn't read your thread, I thought it was hydration and dehydration of ethanol ...

Yaa it is the hydration and dehydration of ethanol, sorry that I didn't specify. Also, are you sure about that because my teacher told me that I needed to research it too.

 

[valval]

IIRC from Jacaranda, 350C for dehydration of ethanol and 300C for hydration of ethene.

Thanks!

 

[someth1ng]

Depends on the catalyst used.

For H3PO4 acid catalysts, hydration uses 300C and dehydration uses 350C.
For H2SO4 acid catalysts, hydration uses ~170C and dehydration uses 350C.

Generally, you should be safe to say that hydration is 300C and dehydration is 350C for ALL catalysts.

 

[mac1996]

300 for both hydration and dehydration but the sulfuric acid catalyst is diluted in hydration while it is concentrated in dehydration