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Chemical formula. C 10 H 8 N 2 O 2 S 2 Zn Molar mass: 317.70 g/mol Appearance colourless solid ... Zinc pyrithione (or pyrithione zinc) is a coordination complex of zinc.
Pyrithione is the common name of an organosulfur compound with molecular formula C 5 H 5 NOS, chosen as an abbreviation of pyridinethione, and found in the Persian shallot. [4] It exists as a pair of tautomers, the major form being the thione 1-hydroxy-2(1H)-pyridinethione and the minor form being the thiol 2-mercaptopyridine N-oxide; it crystallises in the thione form. [5]
Zinc compounds are chemical compounds containing the element zinc which is a member of the group 12 of the periodic table. The oxidation state of zinc in most compounds is the group oxidation state of +2. Zinc may be classified as a post-transition main group element with zinc(II). Zinc compounds are noteworthy for their nondescript appearance ...
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Zinc pyrithione is used in antifouling paints. [148] Zinc powder is sometimes used as a propellant in model rockets. [149] When a compressed mixture of 70% zinc and 30% sulfur powder is ignited there is a violent chemical reaction. [149] This produces zinc sulfide, together with large amounts of hot gas, heat, and light. [149]
Piroctone olamine is the ethanolamine salt of the hydroxamic acid derivative piroctone was first synthesized in 1979 by Schwarzkopf-Henkel (Germany). It is often used in anti- dandruff shampoo as a replacement for the commonly used compound zinc pyrithione which was banned in the EU in 2021 because of concerns for environmental toxicity.
Well after their use as insecticides began, their chemical structures were determined by Hermann Staudinger and Lavoslav Ružička in 1924. [11] Pyrethrin I (C n H 28 O 3) and pyrethrin II (C n H 28 O 5) are structurally related esters with a cyclopropane core. Pyrethrin I is a derivative of (+)-trans-chrysanthemic acid.
1) Zinc pyrithione is a coordination complex of zinc salt and pyrithione salt. 2) As mentioned in the body of text, zinc pyrithione has been applied in shampoo for many years. This information should be included in the leading section. 3) The emphasis of the use of zinc pyrithione in seborrheic dermatitis is not appropriate.