Sulphate is a chemical compound that contains the sulfate ion, which consists of one sulfur atom bonded to four oxygen atoms, represented as SO₄²⁻. It is commonly found in nature, often in the form of minerals like gypsum and barite. Sulphates are widely used in various industries, including agriculture, where they serve as fertilizers, and in the production of detergents and paper. In addition to its industrial applications, sulphate plays a role in environmental processes. It can be found in water sources, where it may affect aquatic life. High levels of sulphate can lead to issues such as acid rain, which can harm ecosystems and infrastructure.