A nonmetallic element occurring naturally in large quantities, either combined as in the sulphides (as pyrites) and sulphates (as gypsum), or native in volcanic regions, in vast beds mixed with gypsum and various earthy materials, from which it is melted out. Symbol S. Atomic weight 32. The specific gravity of ordinary octohedral sulphur is 2.05; of prismatic sulphur, 1.96.
Element that occurs in a nature state or in compounds such as sulphides.
an abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions)
One of the elements present in varying quantities in coal, which contributes to environmental degradation when coal is burned. In terms of sulphur content by weight, coal is generally classified as low (less than or equal to 1 percent), medium (greater than 1 percent and less than or equal to 3 percent), and high (greater than 3 percent). Sulphur content is measured as a percent by weight of coal on an "as received" or a "dry" (moisture-free, usually part of a laboratory analysis) basis.
Generally regarded as an impurity in steel as it can have detrimental effects on strength, ductility and weldability as well as producing hot and cold shortness. Its content in most steels is limited to a maximum of 0.050%. Sulphur is beneficial to machining and is added to freecutting steels in amounts up to 0.35% with the manganese content increased to overcome any detrimental effects. Like phosphorus, sulphur is generally undesired, except where machinability is an important goal for the steel. Ductility, impact strength or toughness, weldability, and surface quality are all adversely affected by sulphur content.
A common element in nature. In high atmospheric concentrations as hydrogen sulphide and sulphur dioxide, it can cause extreme bleeding in the lungs and lead to suffocation.
Normally kept as low as possible in steels as it has a detrimental effect on hot and cold formability, ductility, fatigue properties and on weldability. It is beneficial, through the form of manganese sulphide particles, on the machinability of steel and up to ~0.35% can be present in free-cutting steels.
Not normally applied specifically as a fertiliser, as it is included in several other fertilisers which are commonly applied, e.g. ammonium sulphate. Powdered elemental sulphur is sometimes applied to turf and soil to reduce the soil pH, however, great care needs to be taken during application to ensure an even spread is given and also any thatch which is present is not of too high a density otherwise the sulphur can become lodged within the thatch, producing excessive localised acidity which would be detrimental to the sward quality.