Naked Science Forum

Non Life Sciences => Chemistry => Topic started by: Nanag on 11/01/2014 16:23:49

Title: Can glycerol be used in brake fluid?
Post by: Nanag on 11/01/2014 16:23:49

whether glycerol can be used in brake fluid DOT 3 ?  Any references on this subject ?

Title: Re: Glycerol in brake fluid
Post by: CliffordK on 11/01/2014 18:32:27

What is your goal?
DOT 3 brake fluid is a mix of a bunch of glycols.  It is water soluble. 

Glycerin is also water soluable, so it likely is compatible with brake fluid.  However, it has a relatively high freezing point (64.04°F (17.8°C)).   Would it precipitate out in cold weather?

What is your source of glycerin?  Is it salt & contaminant free?  The sludge from biodiesel production would need to be purified before being used.