Sulphur Trioxide Preparation
Laboratory preparation of sulphur trioxide, an important step in the process of making sulphuric acid. “Sulphur (a) burns in the air drawn into the apparatus by an aspirator, and thte sulphur dioxide formed passes with the excess of air into the U-tube (b) which is filled with some loose material to rid the gases of sulphur dust. In the bottle (c) the gases lose their moisture as they make their way through the flass beads drenched with concentrated sulphuric acid. The patinized asbestos in the tube (d) is gently heated, and brings about the union of the sulphur dioxide with the oxygen of the air. The sulphur trioxide resulting from the action is absorbed by concentrated sulphuric acid trickling down through the apparatus (e).” -Brownlee 1907
Source
Brownlee, Raymond B., Fuller, Robert W., Hancock, William J., Sohon, Michael D., Whitsit, Jesee E. First Principles of Chemistry (Boston: Allyn and Bacon, 1907) 159
Downloads
2400×1737, 395.9 KiB
1024×741, 66.8 KiB
640×463, 35.1 KiB
320×231, 12.1 KiB