sodium polysulfide

sodium polysulfide
a yellow-brown, water-soluble, granular powder, Na2Sn, used chiefly in the manufacture of sulfur dyes, insecticides, and synthetic rubber.

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Universalium. 2010.

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  • sodium polysulfide — noun : any of several yellow compounds Na2Sn containing two or more atoms of sulfur in the molecule (as sodium tetrasulfide Na2S4) made by dissolving sulfur in an aqueous solution of sodium sulfide or sodium hydroxide and used chiefly in making… …   Useful english dictionary

  • Polysulfide bromide battery — The PolySulfide Bromide battery (PSB) is a regenerative fuel cell involving a reversible electrochemical reaction between two salt solution electrolytes: sodium bromide and sodium polysulfide.ee also*Flow batteryExternal links*… …   Wikipedia

  • polysulfide — /pol ee sul fuyd/, n. Chem. a sulfide whose molecules contain two or more atoms of sulfur. [1840 50; POLY + SULFIDE] * * * ▪ chemical compound       any member of a class of chemical compounds containing one or more groups of atoms of the element …   Universalium

  • Sodium–sulfur battery — Cut away schematic diagram of a sodium–sulfur battery. (image courtesy NASA John Glenn Research Center). A sodium–sulfur battery or liquid metal battery is a type of molten metal battery[1] constructed from sodium (Na) and sulfur ( …   Wikipedia

  • Sodium-sulfur battery — A sodium sulfur battery is a type of battery constructed from sodium (Na) and sulfur (S). This type of battery has a high energy density, high efficiency of charge/discharge (89 mdash;92%) and long cycle life, and is fabricated from inexpensive… …   Wikipedia

  • sodium sulfide — noun : a sulfide of sodium; especially : a crystalline compound Na2S usually obtained by heating sodium sulfate with coal or hydrogen and used in dehairing hides, in the manufacture of sulfur dyes, as a solvent for these dyes, and as a reducing… …   Useful english dictionary

  • polysulfide rubber — noun : any of various synthetic rubbers made by the reaction of a sodium polysulfide with an organic dichloride (as ethylene dichloride or a dichloro derivative of ethyl formal), characterized in general by good resistance to oxygen, light, oils …   Useful english dictionary

  • sodium thiocyanate — noun : a hygroscopic crystalline salt NaSCN made usually by reaction of sodium cyanide with sulfur or sodium polysulfide and used chiefly in dyeing and printing textiles, in processing photographic color film, and as a weed killer * * * Chem.,… …   Useful english dictionary

  • Polysulfide — Polysulfides are a class of chemical compounds containing chains of sulfur atoms. In their simplest form, polysulfides are anions with the general formula S n 2− and the structure −SSn 2S−. These anions are the conjugate bases of the hypothetical …   Wikipedia

  • List of fungicides — This page aims to list well known chemical compounds, to stimulate the creation of Wikipedia articles.This list is not necessarily complete or up to date ndash; if you see an article that should be here but isn t (or one that shouldn t be here… …   Wikipedia

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