> From: MachineGun > On Thursday, November 21, 2002, at 09:15 AM, Cameron Begg wrote: > > n-butene, and carbonylation of methanol with carbon monoxide. This > > stuff, diluted to 5% by volume, is what they are allowed to call > > "vinegar". > Hence, my belief that such slop is good for only one thing: pouring > down fire ant holes. Another use, at about 20%, is as an herbicide: http://www.aenews.wsu.edu/Oct02AENews/Oct02AENews.htm#Vinegar You can buy 20% acetic acid as "food grade". As the article points out, don't do this at home unless you're knowledgeable about handling acids. Concentrated acetic can give you a nice burn--in the bad, non-CH sense. Probably do a number on fire ants at that strength, too. Riley