ammonium sulfide corrosion of copper

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11 – Stress corrosion cracking (SCC) of copper and copper

Inhibitors, cathodic and anodic, have been widely used to mitigate SCC of copper and copper-based alloys. Sircar et al. reported that addition of ammonium chloride, cobalt sulfate, cesium sulfate and ethylene diamine to a Mattsson solution [(NH 4) 2 SO 4, NH 4 OH, CuSO 4] produces an inhibitive effect on the SCC of α-brass.

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What Is Patina? Definition and Uses - The Balance

Patina is a term that refers to the blue-green layer of corrosion that develops on the surface of copper when exposed to sulfur and oxide compounds.

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Metals and Corrosion Resistance - Engineering ToolBox

Common metals and their corrosion resistance to aggressive fluids like acids, bases and more

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Corrosion Resistance Guide » Active Chemical Systems

Ammonium Sulfide. All. 340. A. Plating Solution: Chromium. All. NR. Copper Chloride. All. 340. A. › Impervious Graphite Corrosion Resistance Guide;

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Copper sulfide - Wikipedia

Copper sulfide. Copper sulfides (British English spelling: copper sulphide) describe a family of chemical compounds and minerals with the formula Cu x S y.

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Sulfide Induced Corrosion of Copper Nickel Alloys

Abstract The susceptibility of Cu-Ni alloys to accelerated corrosion in sea water containing low sulfide concentrations has been investigated. Test alloys included

  • Corrosion · 1979
    J P Gudas · Harvey P Hack
    University of Maryland College Park
    Copper · Seawater · Corrosion
  • Sulfide Odor Removal with Hydrogen Peroxide - H2O2

    industrial/applications.aspx?pid=105&

    Sulfide Oxidation with Hydrogen Peroxide (H2O2) Sulfide ecological (oxygen depletion in receiving waters), and economic (corrosion of copper and manganese

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    Corrosion Protection & Resistance: Clear organic finishes

    Clear Organic Finishes For Copper and Copper Alloys. Copper and its alloys are extremely resistant to corrosion, Solutions used were 0.5% ammonium sulfide,

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    Copper Corrosion Inhibitors | Ecolab

    Copper Corrosion Inhibitors Copper Corrosion Inhibitor Copper can be present in fuel systems in the form of Sulfur compounds such as hydrogen sulfide,

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    ammonium sulfide corrosion of copper -

    PWB Creeping Corrosion Mechanism and Mitigation Strategy Jim Kenny, growth of copper sulfide crystals from versus our method was the

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    Copper.org - C38500 Alloy

    Sodium Sulfide: Good: Corrosion rate increases at elevated nitrogen oxides and ammonia may cause stress corrosion cracking Forms non-protective copper sulfide:

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    Ammonium Bisulfide Corrosion in Hydrotreating Units

    Ammonium bisulfide is formed by the chemical combination of ammonia and sulfur. The ammonia can be present as an added neutralizer or formed in the reactor from nitrogen in the feed. The sulfur can originate as elemental sulfur, converted H2S or iron sulfide corrosion product.

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    Conditions Contributing to Underground Copper Corrosion

    Other factors that can facilitate the corrosion process include soils having: (1) elevated concentrations of sulfate, chloride, ammonia compounds, or sulfide; (2) poor aeration, which supports anaerobic bacteria activity; (3) large amounts of organic or inorganic acid; and (4) large oxygen or neutral-salt (especially chloride) differentials.

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    Stress Corrosion Cracking Of Brass In Ammonia

    The formation of cupric complex ions leads to stress corrosion cracking of brass in ammonia solutions. The process does not proceeds indefinitely since the attack of cupric complex ion (oxide layer) occurs at critical copper ion content which leads to decrease in corrosion rate but the cracking continues with the copper ion concentration.

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    Sulfanylidenecopper | CuS - PubChem

    PubChem CID: 14831: Chemical Names: Copper(II) sulfide; CUPRIC SULFIDE; Copper sulfide (CuS); Copper Blue; 1317-40-4; Copper monosulfide More...

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    Copper Corrosion Inhibitors | Nalco Champion

    Copper Corrosion Inhibitor Copper can be present in fuel systems in the form of heating coils, cooling coils, brass fittings or bronze parts. Copper is quite resistant to corrosion by water but can be attacked by ammonia and sulfur compounds.

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    Ammonium sulfite | (NH4)2SO3 - PubChem

    In the ATS process, sulfur dioxide is absorbed from incinerated Claus tail gas in aqueous ammonia to produce ammonium sulfite and ammonium bisulfite in solution. Kirk-Othmer Encyclopedia of Chemical Technology. 3rd ed., Volumes 1-26.

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    ammonium sulfide corrosion of copper -

    how to extract copper from copper ore process flow chart; home >> ammonium sulfide corrosion of copper. ammonium sulfide corrosion of copper…

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    Hydrogen Sulfide Corrosion: Its Consequences, Detection

    • Mechanism of Sulfide Corrosion Hydrogen sulfide corrosion can occur by two mechanisms: 1) acid attack resulting from the biological conversion of hydrogen sulfide gas to sulfuric acid in the presence of moisture, and 2) direct chemical reaction with metals such as copper, iron .and silver with hydrogen sulfide gas.

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    Copper sulfide - Wikipedia

    Copper sulfide. Copper sulfides (British English spelling: copper sulphide) describe a family of chemical compounds and minerals with the formula Cu x S y.

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    Pre-boiler and Boiler Corrosion Control | GE Water

    In water, the predominant copper corrosion product is cuprous oxide (Cu 2 O ammonia concentration; and hydrogen sulfide

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    ammonium sulfide corrosion of copper -

    how to extract copper from copper ore process flow chart; home >> ammonium sulfide corrosion of copper. ammonium sulfide corrosion of copper…

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    What Is Patina? Definition and Uses - The Balance

    Patina is a term that refers to the blue-green layer of corrosion that develops on the surface of copper when exposed to sulfur and oxide compounds.

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    Copper-Ammonia Complex | Chemdemos

    Copper-Ammonia Complex . When (ammonium hydroxide) May cause corrosion to the esophagus and stomach with perforation and peritonitis.

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    Hydrogen Sulfide Corrosion: Its Consequences, Detection

    ----- Introduction Is undetected hydroge.n sulfide corrosion causing steady deterioration of your sewerage system? Will you be faced with costly sewer replacement or

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    Corrosion in an Aqueous Hydrogen Sulfide, Ammonia,

    Corrosion was more severe than expected based upon a review of published reports considering systems at relatively low ammonium hydrosulfide (NH 4 HS) concentrations and above pH 6. Dependence of carbon steel (CS) corrosion rates on pH and the impact of O 2 was strong, but only prior to reaction between H 2 S and O 2.

    • Corrosion · 1996
      H U Schutt · P R Rhodes
      Royal Dutch Shell
      Aqueous solution · Materials Science · Petroleum · Distillation · pH · Flow
  • [PDF]

    ROLES OF H2S IN THE BEHAVIOR OF

    .../uploads/2011/01/H2S_hydrogen_sulfide_corrosion.pdf

    ROLES OF HzS IN THE BEHAVIOR OF ENGINEERING ALLOYS: A REVIEW OF ammonia in aqueous solutions. Corrosion processes tend sulfide corrosion

    • R D Kane · M S Cayard
      Honeywell
      Hydrogen embrittlement · Fracture mechanics · Materials Science
  • [PDF]

    VOLATILE CORROSION INHIBITORS FOR

    Publications/Papers/VCIProducts/CTP-19.PDF

    VOLATILE CORROSION INHIBITORS FOR PROTECTION OF ELECTRONICS By or 1 ppm ammonium sulfide. 3. to accelerate corrosion of tin based solder, copper,

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