Derived from, or containing, sulphur; specifically, designating those compounds in which the element has a higher valence as contrasted with the sulphurous compounds; as, sulphuric acid
The most important component of the spinning bath in the Viscose process Sulphuric acid converts the alkali contained in the Viscose into sodium sulphate and separates the cellulose from the Viscose again Pure, concentrated sulphuric acid is an oily, heavy liquid, as clear as water The sulphuric acid used in spinning operations is colourless to weak yellowish, and clear to slightly cloudy It has a concentration of 95 - 96% and a specific gravity of 1 84 - 1 88 (weight of 1 44 - 1 88 kg/l)
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% Sulfur 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
Any one of numerous species of yellow or orange butterflies of the subfamily Pierinæ; as, the clouded sulphur (Eurymus, or Colias, philodice), which is the common yellow butterfly of the Eastern United States
sulphur dioxide is added to wine as a disinfectant Sometimes it can be detected in recently bottled wine but the smell should dissipate after a few minutes contact with the air
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
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)
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
sul·phur in AM, use sulfur Sulphur is a yellow chemical which has a strong smell. The air reeks of sulphur. a common light yellow chemical substance that burns with a very strong unpleasant smell, and is used in drugs, explosives, and industry. It is a chemical element : symbol S