Although thanks for the freezium link, cuz it made me think to look for other heat transfer liquids, since I didn't really realize that they do similiar things that we are doing commercially. So I found Enviro-Kool, which looks promising
www.enviro-kool.com although I dunno how you buy it (I emailed them to see). Hopefully it's not expensive and I don't have to buy a 55 gallon drum of the stuff.