Occasional explosions have occurred when aluminum hydride was stored in ether. The explosions have been blamed on the presence of carbon dioxide impurity in the ether, [J. Amer. Chem. Soc. 70:877(1948)]. Diethyl ether and chromium trioxide react violently at room temperature. Solid acetyl peroxide in contact with ether or any volatile solvent may explode violently. A 5-gram portion in ether detonated while being carried, [Chem. Eng. News 27:175(1949)]. Nitrosyl perchlorate ignites and explodes with diethyl ether.
Area code 269 is the telephone area code serving the southwest portion of Michigan's Lower Peninsula. Communities using 269 include Dowagiac, Allegan, Battle Creek, Kalamazoo, Paw Paw, Portage, Otsego, Plainwell, St. Joseph, Benton Harbor, Marshall, Niles, Three Rivers, Sturgis, South Haven, Berrien Springs, and Bridgman. 269 was created in a July 2002 split of area code 616. The 269 area covers roughly the lower third of 616 before the split.
This is a list of telephone area codes in the state of Michigan: 1  231 - Northwestern Lower Michigan: Traverse City, Ludington, Muskegon, Petoskey and Cheboygan. 2  248 - Northern Metro Detroit: All of Oakland County, Northville, and most of Northville Township; overlays with area code 947.