Hydrofluoric acid (HF) is a solution of hydrogen fluoride in water. Its chemical formula is HF. It is a weak acid, but very corrosive and extremely toxic. It can dissolve glass to make hexafluorosilicic acid.
The produce, the products, and the exhibits by organizations such as the Burlington County Historical Society all looked worthy on Wednesday. But to me, the farm fair is about the animals - and the kids who labor over and love them. I could see the devotion on the faces of Mansfield Township neighbors and pals Nick Kester and A.J. Brooks, who are both 12 and raise a type of sheep called a Lincoln. They'll show their animals in a wool competition Thursday.
Burlington is the largest city in the U.S. state of Vermont and the county seat of Chittenden County. It lies 45 miles (72 km) south of the Canada-United States (Quebec-Vermont) border and 94 miles (151 km) south of Montreal. Burlington had a population of 42,417 at the 2010 census.