Magnesium sulfide reacts with oxygen to form the corresponding sulfate, magnesium sulfate. MgS reacts with water to give hydrogen sulfide and magnesium hydroxide. In the BOS steelmaking process, sulfur is the first element to be removed. Sulfur is removed from the impure blast furnace iron by the addition of several hundred kilograms of magnesium powder by a lance. Magnesium sulfide is formed, which then floats on the molten iron and is removed. MgS is a wide band-gap direct semiconductor of interest as a blue-green emitter, a property that has been known since the early 1900s. The wide-band gap property also allows the
Should Have Known Better Should Have Known Better "Should Have Known Better" is a song by American singer-songwriter and multi-instrumentalist Sufjan Stevens. It is the second track and second single from his seventh studio album, "Carrie & Lowell", and was released digitally on March 11, 2015 on Asthmatic Kitty. A promotional CD was later released on Asthmatic Kitty but was not available for sale. ""Should Have Known Better"" received very positive reviews from contemporary music critics. The song was chosen upon release as Pitchfork Media's "Best New Track". Jeremy Gordon stated that, " 'Should Have Known Better' takes us back to the beginning he