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Selenium disulfide, also known as selenium sulfide, is a chemical compound and medication used to treat seborrheic dermatitis, dandruff, and pityriasis versicolor. [1] [2] It is applied to the affected area as a lotion or shampoo. [3] Symptoms frequently return if treatment is stopped. [4]
Some inorganic selenide sulfide compounds are also known. Simplest is the material selenium sulfide, which has medicinal properties. It adopt the diverse structures of elemental sulfur but with some S atoms replaced by Se. Other inorganic selenide sulfide compounds occur as minerals and as pigments. One example is antimony selenosulfide.
Selenium is found in metal sulfide ores, where it substitutes for sulfur. Commercially, selenium is produced as a byproduct in the refining of these ores. Minerals that are pure selenide or selenate compounds are rare. The chief commercial uses for selenium today are glassmaking and pigments. Selenium is a semiconductor and is used in photocells.
Among these compounds, selenium has various oxidation states, the most common ones being −2, +4, and +6. Selenium compounds exist in nature in the form of various minerals, such as clausthalite, guanajuatite, tiemannite, crookesite etc., and can also coexist with sulfide minerals such as pyrite and chalcopyrite. [1]
Selenium sulfide can refer to either of the following: Selenium disulfide, SeS 2; Selenium hexasulfide, Se 2 S 6 This page was last edited on 27 January ...
[1] [2] [3] Selenium belongs with oxygen and sulfur to the group 16 elements or chalcogens, and similarities in chemistry are to be expected. Organoselenium compounds are found at trace levels in ambient waters, soils and sediments. [4] Selenium can exist with oxidation state −2, +2, +4, +6. Se(II) is the dominant form in organoselenium ...
Devorsine made his Drake debut as a captain over 20 years ago, sailing an icebreaker full of scientists over to Antarctica for a research stint. “We had very, very rough seas — more than 20 ...
Selenium sulfide slows down epidermal proliferation. It is fungicidal to Pityrosporum ovale. It also acts as a keratolytic. Selenium sulfide is also known to reduce dryness of scalp and folliculitis. [2] Systemic toxicity can appear if it is applied to inflamed skin. Hypersensitivity reactions are noted in some people.