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  2. Black oxide - Wikipedia

    en.wikipedia.org/wiki/Black_oxide

    Like hot black oxide, mid-temperature black oxide converts the surface of the metal to magnetite (Fe 3 O 4). However, mid-temperature black oxide blackens at a temperature of 90–120 °C (194–248 °F), [6] significantly less than hot black oxide. This is advantageous because it is below the solution's boiling point, meaning there are no ...

  3. Rust converter - Wikipedia

    en.wikipedia.org/wiki/Rust_converter

    Rust converters are chemical solutions or primers that can be applied directly to an iron or iron alloy surface to convert iron oxides into a protective chemical barrier. These compounds interact with iron oxides, especially iron(III) oxide , converting them into an adherent black layer ( black oxide ) that is more resistant to moisture and ...

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  5. Bluing (steel) - Wikipedia

    en.wikipedia.org/wiki/Bluing_(steel)

    3 to black oxide Fe 3 O 4, which forms a more protective, stable coating than the red oxide; the boiling water also removes any remaining residue from the applied acid solution (often nitric acid and hydrochloric acid diluted in water). The loose oxide was then carded (scrubbed) off, using a carding brush – a wire brush with soft, thin ...

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    Plus, right now Amazon Prime members can save big during the "Stock Up & Save" event. Get 20% off when you spend $50 on select Amazon brand essentials, including everyday household needs ...

  7. Iron (II,III) oxide - Wikipedia

    en.wikipedia.org/wiki/Iron(II,III)_oxide

    Iron(II,III) oxide, or black iron oxide, is the chemical compound with formula Fe 3 O 4. It occurs in nature as the mineral magnetite . It is one of a number of iron oxides , the others being iron(II) oxide (FeO), which is rare, and iron(III) oxide (Fe 2 O 3 ) which also occurs naturally as the mineral hematite .

  8. Cobalt(III) oxide - Wikipedia

    en.wikipedia.org/wiki/Cobalt(III)_oxide

    Cobalt(III) oxide is the inorganic compound with the formula of Co 2 O 3. Although only two oxides of cobalt are well characterized, CoO and Co 3 O 4, [4] procedures claiming to give Co 2 O 3 have been described. Thus treatment of Co(II) salts such as cobalt(II) sulfate with an aqueous solution of sodium hypochlorite (also known as bleach ...

  9. Adams' catalyst - Wikipedia

    en.wikipedia.org/wiki/Adams'_catalyst

    Adams' catalyst, also known as platinum dioxide, is usually represented as platinum(IV) oxide hydrate, PtO 2 •H 2 O. It is a catalyst for hydrogenation and hydrogenolysis in organic synthesis. [1]

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