Sulphur, often spelled sulfur in the United States, is a chemical element with the symbol S and atomic number 16. Recognizable by its bright yellow color when in crystalline form, sulphur is a non-metal and is abundant and versatile. It’s an essential element for all life and is found in amino acids, which are the building blocks of proteins in both plants and animals.

In the context of energy commodities, sulphur is often mentioned regarding the refinement of fossil fuels, such as crude oil and coal. These resources contain sulphur in various quantities, and when the fuels are refined and combusted, sulphur dioxide (SO2) can be released into the atmosphere, leading to environmental concerns like acid rain and air pollution. Therefore, regulations often require the removal of sulphur compounds from these fuels before they are used, in a process known as desulfurization, to limit the emission of sulphur oxides into the atmosphere.

Sulphur is also an essential industrial chemical, used in the production of sulphuric acid, which is a key substance in many chemical processes. It also plays a role in the vulcanization of rubber, fungicides, and in the fertilization industry.

For more information about sulphur and its properties, uses, and significance in energy commodities, here are two active websites you can visit:

1. U.S. Geological Survey (USGS) Mineral Resources Program: Provides a detailed overview of sulphur, including its Uses, sources, and production.
URL: https://www.usgs.gov/centers/national-minerals-information-center/sulfur-statistics-and-information

2. The Royal Society of Chemistry – Periodic Table: Offers a comprehensive profile on sulphur, discussing its physical characteristics, chemical behavior, and applications.
URL: https://www.rsc.org/periodic-table/element/16/sulfur

These websites will offer reliable and up-to-date information regarding sulphur, tailored both for those who are new to the topic and for professionals looking for detailed data and analysis.