When a sulfur-bearing fuel is burned, essentially all the sulfur is initially converted to SO 2, the primary form of sulfur emissions from combustion equipment. A small portion of the SO 2 converts to ...

Etching is a method employed during the fabrication of semiconductors to chemically remove layers from the surface of the wafer substrate. Etching is a crucial process, and each wafer is subject to ...

OF the various methods suggested for the preparation of sulphuric acid suitable for use in nitrate estimations, the method of Atkins 1 is perhaps the most suitable. There is, however, one disadvantage ...

The primary vapour responsible for atmospheric nucleation is thought to be sulphuric acid. However, theory suggests that peak concentrations in the boundary layer (10 6 –10 7 cm −3; ref. 8) are ...