Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chemical compound
Sodium polysulfide is a general term for salts with the formula Na2Sx, where x = 2 to 5. The species Sx2−, called polysulfide anions, include disulfide (S22−), trisulfide (S32−), tetrasulfide (S42−), and pentasulfide (S52−). In principle, but not in practice, the chain lengths could be longer.[1][2] The salts are dark red solids that dissolve in water to give highly alkaline and corrosive solutions. In air, these salts oxidize, and they evolve hydrogen sulfide by hydrolysis.
^Steudel, Ralf (2003-10-23). Elemental Sulfur and Sulfur-Rich Compounds I. Berlin Heidelberg: Springer Science & Business Media. ISBN 978-3-540-40191-9.
^Steudel, Ralf (2003-11-17). Elemental Sulfur and Sulfur-Rich Compounds II. Berlin Heidelberg: Springer Science & Business Media. ISBN 978-3-540-40378-4.
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Sodiumpolysulfide is a general term for salts with the formula Na2Sx, where x = 2 to 5. The species Sx2−, called polysulfide anions, include disulfide...
maintain liquid polysulfide and Na+-conductive membranes that are unreactive toward sodium, sulfur, and sodium sulfide. Polysulfides are ligands in coordination...
Na2S2O3 + 3 H2O Upon heating to 300 °C, it decomposes to sodium sulfate and sodiumpolysulfide: 4 Na2S2O3 → 3 Na2SO4 + Na2S5 Thiosulfate salts characteristically...
solids, although technical grades of sodium sulfide are generally yellow to brick red owing to the presence of polysulfides and commonly supplied as a crystalline...
ClC3H6Si(OEt)3 → S4[C3H6Si(OEt)3]2 + 2 NaCl Sometimes as a mixture with other polysulfides, sodium tetrasulfide is used to produce the polymer called thiokol. The reaction...
In the course of an experiment involving ethylene dichloride and sodiumpolysulfide, they created a gum whose outstanding characteristic was a terrible...
carbonate decreases, more yellow-green. Black for copper Solution of sodiumpolysulfide 2.5%, items must be submerged in the solution after color developing...
alkylation of alkali metal di- and polysulfides gives disulfides. "Thiokol" polymers arise when sodiumpolysulfide is treated with an alkyl dihalide....
polysulfane is produced by the reaction of hydrochloric acid with aqueous sodiumpolysulfide. The polysulfane precipitates as an oil. Upon contact with water or...
several polysulfide salts with the general formula M2Sn, where M = Li, Na, K and n = 2, 3, 4, 5, 6. The polysulfide salts of potassium and sodium are similar...
causes sodium and chlorine to undergo a chemical reaction, wherein the "extra" electron is transferred from sodium to chlorine, forming sodium cations...
organosulfur compounds consisting of sulfide (–S–), disulfide (–S–S–) and polysulfide (–Sn–) links in heterocyclic rings. They feature thiazoles, thiazone...
gives various polysulfides with the formula Sx2-, many of which have been obtained crystalline form. Illustrative is the production of sodium tetrasulfide:...
reacting hydrogen sulfide with magnesium oxide in suspension. Magnesium polysulfides have been studied in magnesium-sulfur batteries. Magnesium selenide is...
used as an insecticide. The active ingredient is probably a calcium polysulfide, not CaS. Calcium sulfide decomposes upon contact with water, including...
reaction. Traditional redox flow battery chemistries include vanadium, polysulfide–bromide (Regenesys), iron (IRFB), and uranium. Redox fuel cells are less...
according to the chemical mixture; Polysulfide or 'direct' toners – these do not require a bleaching stage. Except for polysulfide toners, sepia toning is done...
Sn2+, Sn4+ are soluble in yellow ammonium sulfide, where they form polysulfide complexes. This group is determined by adding the salt in water and then...
fiber in which the fiber-forming substance is a long chain synthetic polysulfide in which at least 85% of the sulfide (–S–) linkages are attached directly...
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