• Thumbnail for Silver sulfide
    Silver sulfide is an inorganic compound with the formula Ag 2S. A dense black solid, it is the only sulfide of silver. It is useful as a photosensitizer...
    11 KB (970 words) - 15:20, 5 November 2024
  • of sulfide salts are corrosive. Sulfide also refers to large families of inorganic and organic compounds, e.g. lead sulfide and dimethyl sulfide. Hydrogen...
    13 KB (1,076 words) - 20:23, 17 September 2024
  • Thumbnail for Hydrogen sulfide
    copper and silver; the chemical responsible for black toning found on silver coins is silver sulfide (Ag2S), which is produced when the silver on the surface...
    76 KB (7,939 words) - 13:55, 16 November 2024
  • Thumbnail for Sterling silver
    The black silver sulfide (Ag2S) is among the most insoluble salts in aqueous solution, a property that is exploited for separating silver ions from other...
    23 KB (2,760 words) - 15:12, 7 October 2024
  • Thumbnail for Silver
    Like copper, silver reacts with sulfur and its compounds; in their presence, silver tarnishes in air to form the black silver sulfide (copper forms the...
    95 KB (11,386 words) - 07:28, 7 November 2024
  • Thumbnail for Silver nitrate
    carbonate ions and sulfide ions. This step avoids confusion of silver sulfide or silver carbonate precipitates with that of silver halides. The color...
    24 KB (2,316 words) - 01:04, 29 October 2024
  • Thumbnail for Gelatin silver print
    partially converting the silver to another compound (such as silver selenide or silver sulfide) or partially replacing the silver with another metal (such...
    17 KB (2,234 words) - 11:34, 10 August 2024
  • Thumbnail for Whisker (metallurgy)
    lead-free products. Silver whiskers often appear in conjunction with a layer of silver sulfide, which forms on the surface of silver electrical contacts...
    16 KB (1,719 words) - 17:31, 13 August 2024
  • Thumbnail for Photographic print toning
    Most toners work by replacing the metallic silver in the emulsion with a silver compound, such as silver sulfide (Ag2S) in the case of sepia toning. The...
    9 KB (1,036 words) - 00:07, 8 May 2024
  • of silver sulfide, gold, other trace elements (dopant), or combination thereof, and then combined with an interstitial silver ion to form a silver metal...
    7 KB (874 words) - 12:16, 21 July 2024
  • Thumbnail for Acanthite
    Acanthite (category Sulfide minerals)
    a form of silver sulfide with the chemical formula Ag2S. It crystallizes in the monoclinic system and is the stable form of silver sulfide below 173 °C...
    5 KB (294 words) - 17:40, 19 September 2024
  • Thumbnail for Silver mining
    the process of extracting silver from silver-rich solutions. This technique uses precipitating agents to form silver sulfide in the solution. The precipitation...
    25 KB (2,755 words) - 23:11, 5 November 2024
  • Thumbnail for Galena
    natural mineral form of lead(II) sulfide (PbS). It is the most important ore of lead and an important source of silver. Galena is one of the most abundant...
    16 KB (1,537 words) - 11:35, 10 October 2024
  • Thumbnail for Argentite
    In mineralogy, argentite (from Latin argentum ' silver') is cubic silver sulfide (Ag2S), which can only exist at temperatures above 173 °C (343 °F), 177 °C...
    3 KB (308 words) - 00:23, 4 April 2023
  • Thumbnail for Galvanic corrosion
    electrochemical reduction of silver sulfide molecules: the presence of aluminium (which is less noble than either silver or copper) in the bath of sodium...
    24 KB (2,776 words) - 21:25, 30 August 2024
  • Thumbnail for Thermistor
    reported on the semiconducting behavior of silver sulfide. Faraday noticed that the resistance of silver sulfide decreased dramatically as temperature increased...
    30 KB (3,967 words) - 03:43, 26 September 2024
  • In the case of silver, the dark tarnish is a passivation layer of silver sulfide formed from reaction with environmental hydrogen sulfide. Aluminium similarly...
    30 KB (3,498 words) - 02:15, 23 October 2024
  • based on silver sulfide and silver bromide. the conductive polymer polyvinylcarbazole, used extensively in photocopying (xerography); lead sulfide, used...
    14 KB (1,458 words) - 02:41, 8 July 2024
  • Calcium oxide Solid CaO −603.3 Calcium sulfate Solid CaSO4 −1309.1 Calcium sulfide Solid CaS −477.4 Carbon Carbon (graphite) Solid C 0 Carbon (diamond) Solid...
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  • Thumbnail for Cleaning agent
    alcohols. Silver cleaning is a specialty since silver is noble but tends to tarnish via formation of black silver sulfide, which is removable via silver-specific...
    12 KB (1,348 words) - 23:29, 31 August 2024
  • Thumbnail for Zinc sulfide
    Zinc sulfide (or zinc sulphide) is an inorganic compound with the chemical formula of ZnS. This is the main form of zinc found in nature, where it mainly...
    10 KB (998 words) - 21:56, 3 November 2024
  • Thumbnail for Pseudomorph
    composition, but with a different structure. For example, the cubic form of silver sulfide, argentite, does not actually exist below 173°C, and all are pseudomorphized...
    6 KB (763 words) - 08:52, 20 November 2024
  • Thumbnail for Gold(I) sulfide
    coordination complex chloro(dimethyl sulfide)gold(I). The structure is similar to the α form of silver sulfide (argentite), which only exists at high...
    3 KB (228 words) - 10:18, 30 December 2023
  • 1833, Michael Faraday reported that the resistance of specimens of silver sulfide decreases when they are heated. This is contrary to the behavior of...
    46 KB (5,424 words) - 13:35, 6 November 2024
  • permanganate – AgMnO4 Silver phosphate (silver orthophosphate) – Ag3PO4 Silver subfluoride – Ag2F Silver sulfate – Ag2SO4 Silver sulfide – Ag2S Sodamide –...
    119 KB (8,735 words) - 18:51, 11 November 2024
  • Thumbnail for Ionic conductivity (solid state)
    obeyed in ionic solids like lead(II) fluoride (PbF2) and silver sulfide (Ag2S). In 1921, solid silver iodide (AgI) was found to have had extraordinary high...
    3 KB (369 words) - 23:21, 2 July 2024
  • Thumbnail for Volcanogenic massive sulfide ore deposit
    Volcanogenic massive sulfide ore deposits, also known as VMS ore deposits, are a type of metal sulfide ore deposit, mainly copper-zinc which are associated...
    20 KB (2,537 words) - 22:35, 8 March 2024
  • Thumbnail for Noble metal
    osmium were grouped together, and adjacent to silver and gold. Chalcopyrite, which is copper iron sulfide (CuFeS2), is the most abundant copper ore mineral...
    28 KB (2,759 words) - 05:46, 29 October 2024
  • Thumbnail for Grisaille
    style. Window of St. Peter: Stained glass (white glass, grisaille and silver sulfide) and lead, France, ca. 1500–1510 Odalisque in Grisaille, Jean Auguste...
    9 KB (851 words) - 12:10, 5 November 2024
  • Thumbnail for Patio process
    Patio process (category Silver mining)
    Americas as a native metal or alloy, silver was often found as a compound such as silver chloride and silver sulfide, and therefore required mercury amalgamation...
    19 KB (2,533 words) - 06:36, 15 October 2023