-
Practice your interview with the new SDN AI Interview Coach. Choose a school, answer by voice or typing, and receive a personalized feedback report. Available now to all SDN members. Try the AI Interview Coach.
Destroyer BIO #79: Water & Ether miscible?
Started by informatique
water has H bonds while ether has no H-bonding. Therefore they are not miscible. Water separates from the organic ether.
T
TexasDent
Water and cyclic ether do mix because a cyclic ether has a strong dipole and is polar. The rule for miscibility is like dissolves like. So, polar water is miscible with polar cyclic ethers.
In organic lab we used THF (Tetrahydrofuran) which is a cyclic ether for the grignard reaction and the problem with it was that it would even absorb water vapor from the air and the R-MgBr would react with both the water and the ketone reactant.
In organic lab we used THF (Tetrahydrofuran) which is a cyclic ether for the grignard reaction and the problem with it was that it would even absorb water vapor from the air and the R-MgBr would react with both the water and the ketone reactant.
Advertisement - Members don't see this ad
👍 well said, miscibility is based on polarity.
Yeah, I figured but the answer is that they are miscible. I guess there are mistakes here and there in Destroyer.
T
TexasDent
Yes the answer is that they are miscible. A cyclic ether is polar so it will be miscible in a polar solvent like water.
Noncyclic ethers are much less polar and will not dissolve very much if at all in a polar solvent like water.
I just wanna get this straight. Noncyclic ethers whether they are polor or not will NOT dissolve in water because they dont have H-boding.
ANY CYCLIC ETHER will be miscible in water because it has an exposed Oxygen for H-bonding.
This is correct? Thanks
ANY CYCLIC ETHER will be miscible in water because it has an exposed Oxygen for H-bonding.
This is correct? Thanks
Similar threads
