Sulphur (Sulfur, S) is a chemical element with atomic number (Z) 16, group 16, period 3, and atomic weight 32.06. The Sulphur (Sulfur, S) is the non-metallic element that is present at various levels of concentration in many fossil fuels whose combustion releases sulphur compounds, and considered harmful to the environment. Sulphur is probably the most common and most well known petroleum contaminant by which the oil is rate (sweet or sour) based on its sulphur content. (Refer to the Chemical Element; Periodic Table)
Related Definitions in the Project: The Element and Substance
