Iron + oxygen Iron

Iron oxygen iron III oxide

Iron combusts in oxygen to form various iron oxides, mainly iron(III) oxide: 4 Fe (s) + 3 O2 (g) ==> 2 Fe2O3 (s) Iron in its usual bulk solid form will only burn when in pure oxygen with when a great deal of heat is supplied. This is what a cutting torch does. As we can see in this demo, however, when iron is subdivided finely it burns readily enough in air. We also see that when the concentration of oxygen is increased, the rate of reaction also increases greatly. Air is about 20 percent oxygen, so when we burn the steel wool in pure oxygen, we have increased the concentration by a factor of about five.

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MakingCosmetics Inc. Iron Oxide Yellow - 0.9oz / 25g
Beauty (MakingCosmetics Inc.)
  • Ocher Yellow
  • Note: Item is Non-Returnable, Consists of Raw Materials
  • For External Use Only, This is a Cosmetic Ingredient, Not a Finished Cosmetic Product
  • Description: Color group: yellow. Inorganic, high-purity pigment. Insoluble, but miscible in water and oils. CAS# 1332-37-2. INCI Name: CI 77492 (iron oxide yellow)...
MyLuxury1st Yellow Iron Oxide Golden Brown Undertoned Powder Pigment for Mineral Cosmetic Makeup and Soap Making 0.98 Oz / 28g
Beauty (MyLuxury1st)
  • Raw Ingredient: Iron Oxide Blend. Golden Brown Undertone. Not a finished product.
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