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Colloidal sulfur (sulfur colloidale) is an extremely fine sulfur powder prepared by repeated precipitation, first from polysulfides with protein and then from a slightly alkaline solution with ethanol or acetone. It has a greyish-white colour. Colloidal solutions in water are milky, and bluish when viewed against the light due to the Tyndall ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 1 February 2025. This article is about the chemical element. For other uses, see Sulfur (disambiguation). Chemical element with atomic number 16 (S) Sulfur, 16 S Sulfur Alternative name Sulphur (pre-1992 British spelling) Allotropes see Allotropes of sulfur Appearance Lemon yellow sintered microcrystals ...
Other drugs like sulfur and resorcinol have also been found useful in treating seborrheic dermatitis. These drugs have keratolytic and antiseptic properties which may benefit seborrhoea. Salicylic acid has a mild effect on seborrhoea.
The ring is aromatic by virtue of the two double bonds one of the lone pairs of electrons of sulfur. Four constitutional isomers are possible, differing by the relative positions of the sulfur and nitrogen atoms. The nomenclature thus includes the locations of each of those three atoms, with the first of the three numbers referring to the sulfur.
Author of The Demon Under the Microscope, a history of the discovery of the sulfa drugs; A History of the Fight Against Tuberculosis in Canada (Chemotherapy) Presentation speech, Nobel Prize in Physiology and Medicine, 1939; The History of WW II Medicine "Five Medical Miracles of the Sulfa Drugs". Popular Science, June 1942, pp. 73–78.
Nature is abound with organosulfur compounds—sulfur is vital for life. Of the 20 common amino acids, two (cysteine and methionine) are organosulfur compounds, and the antibiotics penicillin and sulfa drugs both contain sulfur. While sulfur-containing antibiotics save many lives, sulfur mustard is a deadly chemical warfare agent.
Sulfathiazole is an organosulfur compound used as a short-acting sulfa drug. [1] Formerly, it was a common oral and topical antimicrobial, until less toxic alternatives were discovered. [2] Sulfathiazole exists in various forms . The imine tautomer is dominant in solid samples. [3]
The drug combination sulfacetamide/sulfur is a topical acne medication [1] manufactured by Medicis under the trade name Plexion and also available under other trade names such as Clenia, Prascion, and Avar. It combines sodium sulfacetamide, a sulfonamide antibiotic, and sulfur, a keratolytic agent. [2]