Two common qualitative tests for unsaturation are the reaction of the compounds with bromine in carbon tetrachloride and with potassium permanganate. In both cases a positive test is denoted by decolorization of the reagent.wo common qualitative tests for unsaturation are the reaction of the compounds with bromine in carbon tetrachloride and with potassium permanganate. In both cases a positive test is denoted by decolorization of the reagent.
On this day in 1917, the text of the so-called Zimmermann Telegram, a message from the German foreign secretary, Arthur Zimmermann, to the German ambassador to Mexico proposing a Mexican-German alliance in the case of war between the United States and Germany, is published on the front pages of newspapers across America.
FOR SALE: One 9-mm pistol â and whateverâs left of George Zimmermanâs bankrupt soul. The Florida neighborhood watchman who fatally shot unarmed teen Trayvon Martin in 2012 is putting the killer handgun up for auction â and hoping to fetch at least $5,000. âI am honored and humbled to announce the sale of an American Firearm Icon,â Zimmerman wrote in his online description of the weapon.