Definition of sulphur
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Sulphur (n.) 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..
Lern More About Sulphur
Exsiccator ::
Exsiccator (n.) An apparatus for drying substances or preserving them from moisture; a desiccator; also, less frequently, an agent employed to absorb moisture, as calcium chloride, or concentrated sulphuric acid..
Cast Iron ::
Cast iron () Highly carbonized iron, the direct product of the blast furnace; -- used for making castings, and for conversion into wrought iron and steel. It can not be welded or forged, is brittle, and sometimes very hard. Besides carbon, it contains sulphur, phosphorus, silica, etc..
Ullmannite ::
Ullmannite (n.) A brittle mineral of a steel-gray color and metallic luster, containing antimony, arsenic, sulphur, and nickel..
Arsenopyrite ::
Arsenopyrite (n.) A mineral of a tin-white color and metallic luster, containing arsenic, sulphur, and iron; -- also called arsenical pyrites and mispickel..
Sacchulmic ::
Sacchulmic (a.) Of, pertaining to, or designating, an acid obtained as a dark amorphous substance by the long-continued boiling of sucrose with very dilute sulphuric acid. It resembles humic acid..
Amphigen ::
Amphigen (n.) An element that in combination produces amphid salt; -- applied by Berzelius to oxygen, sulphur, selenium, and tellurium..
Hepar ::
Hepar (n.) Liver of sulphur; a substance of a liver-brown color, sometimes used in medicine. It is formed by fusing sulphur with carbonates of the alkalies (esp. potassium), and consists essentially of alkaline sulphides. Called also hepar sulphuris (/)..
Thionine ::
Thionine (n.) An artificial red or violet dyestuff consisting of a complex sulphur derivative of certain aromatic diamines, and obtained as a dark crystalline powder; -- called also phenylene violet..
Peucedanin ::
Peucedanin (n.) A tasteless white crystalline substance, extracted from the roots of the sulphurwort (Peucedanum), masterwort (Imperatoria), and other related plants; -- called also imperatorin..
Trioxide ::
Trioxide (n.) An oxide containing three atoms of oxygen; as, sulphur trioxide, SO3; -- formerly called tritoxide..
Polysulphide ::
Polysulphide (n.) A sulphide having more than one atom of sulphur in the molecule; -- contrasted with monosulphide.
Sulphurator ::
Sulphuration (n.) The act or process of combining or impregnating with sulphur or its compounds; also, the state of being so combined or impregnated..
Sulphonium ::
Sulphonic (a.) Pertaining to, or derived from, a sulphone; -- used specifically to designate any one of a series of acids (regarded as acid ethereal salts of sulphurous acid) obtained by the oxidation of the mercaptans, or by treating sulphuric acid with certain aromatic bases (as benzene); as, phenyl sulphonic acid, C6H5.SO2.OH, a stable colorless crystalline substance..
Haematoin ::
Haematoin (n.) A substance formed from the hematin of blood, by removal of the iron through the action of concentrated sulphuric acid. Two like bodies, called respectively haematoporphyrin and haematolin, are formed in a similar manner..
Leucin ::
Leucin (n.) A white, crystalline, nitrogenous substance formed in the decomposition of albuminous matter by pancreatic digestion, by the action of boiling dilute sulphuric acid, and by putrefaction. It is also found as a constituent of various tissues and organs, as the spleen, pancreas, etc., and likewise in the vegetable kingdom. Chemically it is to be considered as amido-caproic acid..
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