Diethyl ether of vitriol" ("oleum dulce vitrioli")—the name reflects the fact that it is obtained by distilling a mixture of ethanol and sulfuric acid (then known as oil of vitriol)—and noted some of its medicinal properties. At about the same time, Paracelsus discovered ether's analgesic properties in chickens. The name "ether" was given to the substance in 1729 by August Sigmund Frobenius. Diethyl ether Diethyl ether, or simply ether, is an organic compound in the ether class with the formula , sometimes abbreviated as (see Pseudoelement symbols). It is a colorless, highly volatile flammable liquid. It is commonly used as a solvent
Ji (Korean name) Ji (Korean name) Ji, also spelled Jee, Chi, or Chee, is a Korean family name, as well as a popular element in Korean given names. The meaning differs based on the hanja used to write it. As a family name, Ji may be written with either of two hanja, one meaning "wisdom" (), and the other meaning "pond" (). Each has one "bon-gwan": for the family name meaning "wisdom", Pongju Village, Pongsan County, North Hwanghae in what is today North Korea, and for the family name meaning "pond", Chungju, Chungcheongbuk-do in what is today South Korea. The 2000 South Korean