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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 ]
Ointments are more occlusive than aqueous creams, which are more occlusive than lotion. [5] Water loss through the skin is normally about 4–8 g/(m 2 ⋅h). A layer of petrolatum applied to normal skin can reduce that loss by 50–75% for several hours. [4] Oils naturally produced by the human body moisturize through this same mechanism. [2]
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 ...
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]
12 January – An appeals court acquits Haneen Hossam and Mawada al-Adham imprisoned for "attacking society’s values" over videos they published on TikTok. Hossam, 20, still faces charges of human trafficking. [1] 18 January – Direct flights between Egypt and Qatar are renewed for the first time since 2017. 300,000 Egyptians live in Qatar. [2]
The artifacts will be repatriated to Italy and Egypt next week. [21] 7 September – Egypt confirms its first case of monkeypox. [22] 25 October – Ten people are killed and nine others are injured when a truck and a minibus collide in Dakahlia Governorate. [23] 6–18 November COP 27; 8 November – Three people are killed after a building ...
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.
Kohl powder A fourth-century CE double cosmetic tube for kohl from Egypt, in the Louvre Museum in Paris. Kohl is an eye cosmetic, traditionally made by crushing stibnite (antimony sulfide) for use similar to that of charcoal in mascara. It is widely used throughout the world, typically as eyeliner to contour or darken the eyelids. The content ...