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  2. Iron(III) oxide - Wikipedia

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

    Iron(III) oxide or ferric oxide is the inorganic compound with the formula Fe 2 O 3. It occurs in nature as the mineral hematite , which serves as the primary source of iron for the steel industry. It is also known as red iron oxide , especially when used in pigments .

  3. Ingredients of cosmetics - Wikipedia

    en.wikipedia.org/wiki/Ingredients_of_cosmetics

    The red color of modern lipstick can come from synthetically derived pure iron oxide (common iron rust), however most leading brands use the more economical synthetic colors. In the United States, every batch of synthetic dye and pigment must have a sample sent to the US FDA for testing and certification that the batch is pure and its ...

  4. 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 .

  5. Tattoo ink - Wikipedia

    en.wikipedia.org/wiki/Tattoo_ink

    Iron oxides, [9] such as magnetite and wustite, [10] along with nickel from impurities in iron oxides [11] White May contain: Titanium dioxide [2] Zinc [12] These have mostly replaced more toxic pigments such as barium sulphate and white lead. [10] Red May contain: Cadmium sulphide or cadmium selenide [10] Iron oxides or ferric hydrate (red ...

  6. List of inorganic pigments - Wikipedia

    en.wikipedia.org/wiki/List_of_inorganic_pigments

    Clay earth pigments (naturally formed iron oxides) Raw umber (PBr7): a natural clay pigment consisting of iron oxide, manganese oxide and aluminum oxide: Fe 2 O 3 + MnO 2 + n H 2 O + SiO 2 + Al 2 O 3. When calcined (heated) it is referred to as burnt umber and has more intense colors. Raw sienna (PBr7): a naturally occurring yellow-brown ...

  7. Cosmetics - Wikipedia

    en.wikipedia.org/wiki/Cosmetics

    Inorganic compounds are processed minerals such as iron oxides, talc, and zinc oxide. The oxides of zinc and iron are classified as pigments, i.e., colorants that have no solubility in solvents. Cosmetic companies have become more transparent in the ingredients of their products because consumers are interested in the formula of their products ...

  8. Kohl (cosmetics) - Wikipedia

    en.wikipedia.org/wiki/Kohl_(cosmetics)

    Kohl powder A fourth-century CE double cosmetic tube for kohl from Egypt, in the Louvre Museum in Paris. Kohl is an eye cosmetic, traditionally made by crushing stibnite for use similar to that of charcoal in mascara. It is widely used throughout the world, typically as eyeliner to contour or darken the eyelids. The content of kohl and various ...

  9. Iron oxide red - Wikipedia

    en.wikipedia.org/wiki/Iron_oxide_red

    Iron oxide pigments in jars: yellow, red, brown. Iron oxide red is a generic name of a ferric oxide pigment of reddish colors. Multiple shades based on both anhydrous Fe 2 O 3 and its hydrates were known to painters since prehistory. The pigments were originally obtained from natural sources, since the 20th century they are mostly synthetic.

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