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  2. 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.

  3. 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 ...

  4. Magnetite - Wikipedia

    en.wikipedia.org/wiki/Magnetite

    Magnetite is black or brownish-black with a metallic luster, has a Mohs hardness of 5–6 and leaves a black streak. [7] Small grains of magnetite are very common in igneous and metamorphic rocks. [11] The chemical IUPAC name is iron(II,III) oxide and the common chemical name is ferrous-ferric oxide. [12]

  5. Thermite - Wikipedia

    en.wikipedia.org/wiki/Thermite

    Red iron(III) oxide (Fe 2 O 3, commonly known as rust) is the most common iron oxide used in thermite. [ 14 ] [ 15 ] [ 16 ] Black iron(II,III) oxide (Fe 3 O 4 , magnetite ) also works. [ 17 ] Other oxides are occasionally used, such as MnO 2 in manganese thermite, Cr 2 O 3 in chromium thermite, SiO 2 (quartz) in silicon thermite, or copper(II ...

  6. Iron poisoning - Wikipedia

    en.wikipedia.org/wiki/Iron_poisoning

    The first indication of iron poisoning occurs within the first six hours post-ingestion and involves gastrointestinal symptoms including abdominal pain accompanied by nausea and vomiting with or without blood. Due to the disintegration of iron tablets, the stool may appear as black or dark green or gray. [4]

  7. ‘Elevated Levels’ of Heavy Metals Found in Popular Protein ...

    www.aol.com/scientists-just-found-lead-cadmium...

    A new Clean Label Project report suggests some protein powders contain heavy metals lead and cadmium. See which ones are safe here, plus what an expert advises.

  8. Iron oxide - Wikipedia

    en.wikipedia.org/wiki/Iron_oxide

    Iron is stored in many organisms in the form of ferritin, which is a ferrous oxide encased in a solubilizing protein sheath. [ 10 ] Species of bacteria , including Shewanella oneidensis , Geobacter sulfurreducens and Geobacter metallireducens , use iron oxides as terminal electron acceptors .

  9. Red Dye 3 Just Got Banned. These Are the Foods to Avoid If ...

    www.aol.com/red-dye-3-just-got-134800003.html

    Bowen also predicts that other natural options may become more popular, including minerals such as calcium carbonate (white) and iron oxides (red, brown and black), fruit and vegetable extracts ...