The sulfide ion, S2−, does not exist in aqueous alkaline solutions of Na2S. Depending on the conditions, the oxidation can produce elemental sulfur, polysulfides, polythionates, sulfite, or sulfate. One well-known ionic compound with a sulfide ion is H_2S. The infamous rotten-egg smell often associated with sulfur originates from this compound. [6] Significant examples include: argentite (silver sulfide), cinnabar (mercury sulfide), galena (lead sulfide), molybdenite (molybdenum sulfide), pentlandite (nickel sulfide), realgar (arsenic sulfide), and stibnite (antimony), sphalerite (zinc sulfide), and pyrite (iron disulfide), and chalcopyrite (iron-copper sulfide). Confusion arises from the different meanings of the term "disulfide". The systematic names sulfanediide and sulfide(2−), valid IUPAC names, are determined according to the substitutive and additive nomenclatures, respectively. Draw the electron dot formula for the carbonate ion CO3 2-. Many metal sulfides are so insoluble in water that they are probably not very toxic. Sulfide compounds are fairly soluble. Such inorganic sulfides typically have very low solubility in water, and many are related to minerals with the same composition (see below). The preferred descriptor for such SH-containing compounds is thiol or mercaptan, i.e. Vaughan, D. J.; Craig, J. R. “Mineral chemistry of metal sulfides" Cambridge University Press, Cambridge: 1978.,, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License, This page was last edited on 24 October 2020, at 00:34. O C O O ... B. Sulfide ion C. Sulfite ion D. Sulfate ion E. None. For example, methyl sulfide can mean CH3–SH. The aluminum ion is Al3+ and the sulfide ion is S2-. How long will the footprints on the moon last? 2004-09-16. This kind of deterioration is a major process affecting sewer systems worldwide and leading to very high rehabilitation costs. Polyphenylene sulfide (see below) has the empirical formula C6H4S. Sulfide (British English also sulphide)[2] is an inorganic anion of sulfur with the chemical formula S2− or a compound containing one or more S2− ions. Dates: Modify . Biogenic sulfuric acid reacts with sewerage materials and most generally causes mass loss, cracking of the sewer pipes and ultimately, structural collapse. Dimethyldisulfide has the chemical binding CH3–S–S–CH3, whereas carbon disulfide has no S–S bond, being S=C=S (linear molecule analog to CO2). However, the name sulfide is also used in compositional IUPAC nomenclature which does not take the nature of bonding involved. Iron disulfide (pyrite, FeS2) on the other hand consists of S2−2, or −S–S− dianion, in association with divalent iron in the formal +2 oxidation state (ferrous ion: Fe2+). Who is the longest reigning WWE Champion of all time? How will understanding of attitudes and predisposition enhance teaching? Occasionally, the term sulfide refers to molecules containing the –SH functional group. In fact, the bonding in transition metal sulfides is highly covalent, which gives rise to their semiconductor properties, which in turn is related to the deep colors. Sulfide ions are extremely basic. Is it ok to eat a frozen turkey with black spots on it? All Rights Reserved. This article is about sulfur anion in general. Examples of such naming are selenium disulfide and titanium sulfide, which contains no sulfide ions whatsoever. Oxidation of sulfide can also form thiosulfate (S2O2−3) an intermediate species responsible for severe problems of pitting corrosion of steel and stainless steel while the medium is also acidified by the production of sulfuric acid when oxidation is more advanced. Create . As it is classified as a strong base, even dilute solutions of salts such as sodium sulfide (Na2S) are corrosive and can attack the skin. More... Molecular Weight: 80.07 g/mol. Sulfite is a sulfur oxoanion that is the conjugate base of hydrogen sulfite (H2SO3). Microbially-induced corrosion (MIC) or biogenic sulfide corrosion are also caused by sulfate reducing bacteria producing sulfide that is emitted in the air and oxidized in sulfuric acid by sulfur oxidizing bacteria. Such species are sometimes referred to as salts. The formula for aluminum sulfide is Al2S3. For the organic compound also called sulfide, see, Except where otherwise noted, data are given for materials in their. Hydrogen sulfide (H2S) and bisulfide (SH ) are the conjugate acids of sulfide.


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