When.com Web Search

Search results

1. Results From The WOW.Com Content Network

2. Mars Black (pigment) - Wikipedia

   en.wikipedia.org/wiki/Mars_Black_(pigment)

   Mars Black is an iron oxide pigment developed in the 20th century. Also known under the names of black iron oxide, magnetic oxide, Pigment Black 11, and ferrous ferric oxide (Fe 3 O 4), [1] it has no known health hazards [2] and is considered non-toxic, with an ASTM lightfastness rating of I.

3. 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.

4. Iron oxide - Wikipedia

   en.wikipedia.org/wiki/Iron_oxide

   Iron oxide pigment. The brown color indicates that iron is at the oxidation state +3. Green and reddish brown stains on a limestone core sample, respectively corresponding to oxides/hydroxides of Fe 2+ and Fe 3+. Iron oxides feature as ferrous or ferric or both. They adopt octahedral or tetrahedral coordination geometry. Only a few oxides are ...

5. 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 ...

6. Category:Iron oxide pigments - Wikipedia

   en.wikipedia.org/wiki/Category:Iron_oxide_pigments

   Pages in category "Iron oxide pigments" The following 23 pages are in this category, out of 23 total. ... Mars Black (pigment) Mummy brown; O. Ochre; R. Red Ochre; S ...

7. 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 .