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OsO 4 is a widely used staining agent used in transmission electron microscopy (TEM) to provide contrast to the image. [22] This staining method may also be known in the literature as the OTO [23] [24] (osmium-thiocarbohydrazide-osmium) method, or osmium impregnation [25] technique or simply as osmium staining.
Osmium tetroxide is the most notable compound of osmium, having many uses. The name "osmium" even derives from Greek " ὀσμή, osme, 'smell'" because of the smell of osmium tetroxide. [12] It also has a number of unusual properties, one being that the solid is volatile. Its volatility, along with its strong oxidizing power, is the origin of ...
N-Methylmorpholine N-oxide (more correctly 4-methylmorpholine 4-oxide), NMO or NMMO is an organic compound.This heterocyclic amine oxide and morpholine derivative is used in organic chemistry as a co-oxidant and sacrificial catalyst in oxidation reactions for instance in osmium tetroxide oxidations and the Sharpless asymmetric dihydroxylation or oxidations with TPAP. [1]
Osmium oxide may refer to: Osmium dioxide, OsO 2; Osmium tetroxide, OsO 4 This page was last edited on 4 March 2021 ...
Osmium tetroxide is used in optical microscopy to stain lipids. It dissolves in fats, and is reduced by organic materials to elemental osmium, an easily visible black substance. Because it is a heavy metal that absorbs electrons, it is perhaps the most common stain used for morphology in biological electron microscopy.
Ruthenium can be oxidized to ruthenium(IV) oxide (RuO 2, oxidation state +4), which can, in turn, be oxidized by sodium metaperiodate to the volatile yellow tetrahedral ruthenium tetroxide, RuO 4, an aggressive, strong oxidizing agent with structure and properties analogous to osmium tetroxide. RuO 4 is mostly used as an intermediate in the ...
Prior to this method, use of stoichiometric amounts of the toxic and expensive reagent osmium tetroxide was often necessary. The Upjohn dihydroxylation is still often used for the formation of cis-vicinal diols; however, it can be slow and is prone to ketone byproduct formation.
This can be used for pet stains and out of doors. [3] There is no chief underlying chemical reason why club soda would be superior to plain water in stain removal. [8] Glycerine This can be used to soften "set" stains, especially on wool and non-water-washable fabrics. [3] Boiling water This can be used to take out fruit juice stains.
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