Whats the difference between "100% pure food grade propylene glycol" and monopropylene glycol?
(https://www.grainfather.com/glycol-chiller2.html)
(https://www.grainfather.com/glycol-chiller2.html)
monopropylene glycol...
- Thread starter Beer w/Straw
- Start date
exchemist
Valued Senior Member
None, apart from purity I suppose. Ethylene glycol (antifreeze) is poisonous. I don't know whether traces of this can be found in some grades of propylene glycol but if so that might explain the "food grade" issue.
(The "mono" is simply to avoid confusion with polyethylene glycol, which is a polymer formed from propylene glycol monomer units, linked by C-O-C bridges - a polyether, in fact.
)Thank for this, BwS. We don't get much chemistry around here these days.
OMFG! Amazon has a syringe by "Food Grade Propylene Glycol"! [EDIT: at least linked from Google page]
https://www.amazon.ca/Propylene-Glycol-Food-Grade-Quart/dp/B005PZBRUC
They link in the OP (if it worked) was a hook up for controlling fermentation temperatures for beer; a step up from a water pump. I was wondering why you only have water cooled computers on the market then...
:EDIT:
There definitely looks like there would be a difference from enlarging the label on the link... Between it and antifreeze.
https://www.amazon.ca/Propylene-Glycol-Food-Grade-Quart/dp/B005PZBRUC
They link in the OP (if it worked) was a hook up for controlling fermentation temperatures for beer; a step up from a water pump. I was wondering why you only have water cooled computers on the market then...
:EDIT:
There definitely looks like there would be a difference from enlarging the label on the link... Between it and antifreeze.
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