Science Forums Biology Forum Molecular Biology Forum Physics Chemistry Forum

Science Forums Biology Forum Molecular Biology Forum Physics Chemistry Forum (http://www.molecularstation.com/forum/)
-   Chemistry Forum (http://www.molecularstation.com/forum/chemistry-forum/)
-   -   Glycerol-water solution (http://www.molecularstation.com/forum/chemistry-forum/72099-glycerol-water-solution.html)

seagull 12-18-2009 04:59 PM

Glycerol-water solution
 
Hi,

I tried to make Glycerol - water solution (Glycerol 60%-water 40%) but could not get the solution to be homogeneous enough (was not well dissolved at all).

I am not a chemist, so do forgive me if this is too simple, all what I did is to weigh both liquids and mix them together.

Is there a way to get well dissolved Glycerol-water solution?

Thanks

kmunson779 12-18-2009 05:05 PM

Re: Glycerol-water solution
 
Just keep mixing -- it'll get there eventually. Glycerol is miscible in water.

Did your protocol say to make a 60% mixture by weight? Usually I make glycerol dilutions by volume. Just curious.

It may help if you add something to help things roil around in there -- like a magnetic stir bar or some clean glass or metal beads (think of nail polish bottles).

seagull 12-18-2009 05:16 PM

Re: Glycerol-water solution
 
Well, I've chosen 60% mass of glycerol just to get certain viscosity (~10.5 mPa.s) and surface tension (~67mN/m).
I did mix it for like 15 seconds but it didn't seem going to mix up so I give up.
I think I'll put both liquids in a bottle with metal beads and give it a good shake for few minutes hopefully that will make it mix.

If you still have any advice please let me know

Cheers

laura010 12-22-2009 09:15 AM

Re: Glycerol-water solution
 
The same question to you,but i think wo can resolve it


All times are GMT. The time now is 12:13 PM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2005 - 2012 Molecular Station | All Rights Reserved

Page generated in 0.09074 seconds with 11 queries