| sulfur-35 | A radioactive sulfur isotope; a beta emitter with a half-life of 87.2 days; used as a tracer in the study of metabolism of cysteine, cystine, methionine, etc.; also used to estimate, with labelled sulfate, extracellular fluid volumes. (05 Mar 2000) |
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| sulfur-ferric ion oxidoreductase | <enzyme> From thiobacillus ferrooxidans; catalyses the production of sulfite and fe(2+) from elemental sulfur and fe(3+) Registry number: EC 1.8.99.- Synonym: sf oxidoreductase, sulfite-ferric ion oxidoreductase (26 Jun 1999) |
| sulfur-reducing bacteria | A group of gram-negative, anaerobic bacteria that is able to oxidise acetate completely to carbon dioxide using elemental sulfur as the electron acceptor. (12 Dec 1998) |
| sulfur-sulfur bond isomerases | <enzyme> Enzymes that catalyze the transposition of a sulfur-sulfur bond. Registry number: EC 5.3.4 (12 Dec 1998) |
| sulfurated lime | Used externally in the treatment of acne, scabies, and ringworm. Synonym: sulfurated lime. (05 Mar 2000) |
| sulfurated potash | A mixture composed chiefly of potassium polysulfides and potassium thiosulfate; used externally in scabies, acne, and psoriasis; used in the manufacture of "white lotion". Synonym: liver of sulfur. (05 Mar 2000) |
| sulfuret | A compound of sulfur in which the sulfur has a valence of -2; e.g., Na2S, HgS; also, a thioether (i.e., R-S-R', such as lanthionine). Synonym: sulfuret. (05 Mar 2000) |
| sulfureted hydrogen | <chemical> Hydrogen sulfide (h2s). A flammable, poisonous gas with a characteristic odour of rotten eggs. It is used in the manufacture of chemicals, in metallurgy, and as an analytical reagent. Chemical name: Hydrogen sulfide (H2S) (12 Dec 1998) |
| sulfuric acid | H2SO4;a colourless, nearly odourless, heavy, oily, corrosive liquid containing 96% of the absolute acid; used occasionally as a caustic. Synonym: oil of vitriol. (05 Mar 2000) |
| sulfuric acid esters | Organic esters of sulfuric acid. (12 Dec 1998) |
| sulfuric acids | Inorganic and organic derivatives of sulfuric acid (h2so4). The salts and esters of sulfuric acid are known as sulfates and sulfuric acid esters respectively. (12 Dec 1998) |
| sulfuric ether | CH3CH2OCH2CH3;a flammable, volatile organic solvent used in extraction procedures; formerly widely used as an inhalation anaesthetic; shortcomings include: irritating vapor, slow onset and prolonged recovery phase, explosion hazard. Synonym: ethyl ether, ethyl oxide, sulfuric ether. (05 Mar 2000) |
| sulfuric oxide | SO3;forms sulfuric acid, H2SO4, by its reaction with water. Synonym: sulfuric oxide. (05 Mar 2000) |
| sulfurous | Designating a sulfur compound in which sulfur has a valence of +4 as contrasted to sulfuric compounds in which sulfur has a valence of +6, or sulfides (-2). (05 Mar 2000) |
| sulfurous acid | H2SO3;a solution of about 6% sulfur dioxide in water; used chiefly as a disinfectant and bleaching agent, and occasionally as a spray in tonsillitis; it has been used externally for its parasiticidal effect in various skin diseases. (05 Mar 2000) |
Synonyms : Hexafluoride, Sulfur
Synonyms : Isotopes, Sulfur
Synonyms : Oxides, Sulfur
Synonyms : Radioisotopes, Sulfur
Synonyms : Sulfur Reducing Bacteria
| sulfur |
Sulfur (or Sulphur; see spelling below) is the chemical element in the periodic table that has the symbol S and atomic number 16. It is an abundant, tasteless, odorless, multivalent non-metal. Sulfur, in its native form, is a yellow crystaline solid. In nature, it can be found as the pure element or as sulfide and sulfate minerals. It is an essential element for life and is found in several amino acids. ...
출처: en.wikipedia.org/wiki/Sulfur
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| sulfurous |
Deadly mixture of smoke and fog peaking in the midtwentieth century in large cities. A smog episode in London in 1952 led to 4000 deaths. The sulfuric acid produced from the fossil fuel sources in use at that time led to a choking mixture when incorporated into fog droplets. It is associated with low temperatures, low actinic flux, and high humidity. This form of air pollution was largely eliminated by legislation in the 1950s that led to reduced emissions of SO 2 and smoke. ...
출처: amsglossary.allenpress.com/glossary/browse
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| sulfur dioxide |
Acidic gas, formula SO 2 , formed in the combustion of many fuels and in the oxidation of naturally occurring sulfur gases. It is the primary sulfur gas emitted from combustion sources and is a precursor to sulfuric acid, which is a major constituent of acid rain.
출처: amsglossary.allenpress.com/glossary/browse
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| sulfuric acid |
Strong acid, formula H 2 SO 4 , formed as the end product in the oxidation of most sulfur compounds. Sulfuric acid is a major constituent of acid rain associated with fossil fuel combustion. As a consequence of its low volatility, it can lead to particle formation, and is a major constituent of cloud condensation nuclei and the background aerosol, including the stratospheric sulfate layer.
출처: amsglossary.allenpress.com/glossary/browse
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| sulfur dioxide |
A pungent, colorless, gaseous pollutant formed primarily by the combustion of fossil fuels.
출처: www.nsc.org/ehc/glossar2.htm
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| Sulfur | of or relating to or containing sulfur |
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| Sulfur | (H2SO4) a highly corrosive acid made from sulfur dioxide |
| Sulfur | treated or impregnated with sulfur |
| Sulfur | characterized by oppressive heat and humidity |
| Sulfur | harsh or corrosive in tone |