Hematite Usage And Synthesis
Hematite, also spelled as haematite, is the mineral form of iron(III) oxide (Fe2O3), one of several iron oxides. It is the oldest known Fe oxide mineral and is widespread in rocks and soils. The name hematite is derived from the Greek word for blood α?μα haima, due to the red coloration found in some varieties of hematite.The red chalk writing of this mineral was one of the earliest in the history of humans.Rich deposits of hematite have been found on the island of Elba that have been mined since the time of the Etruscans.
Iron(III) oxide is known in mineral form as hematite, which is the primary form of iron ore.
It is also known simply as iron oxide or ferric oxide and is what is colloquially called rust
when referring to the corrosion of iron objects.
Iron (III) oxide exists in mineral form as hematite.It is 70% iron and is the primary source of iron ore in the world. About 90% of the iron mined in the United States is hematite. World production of this ore is more than 1 billion tons. Magnetite and taconite are two other primary iron oxide minerals used as iron ore.The name hematite comes from the blood-red color of powdered hematite.
Steel gray to black crystals or as ready earthy material.
Hematite is a noncombustible, black to black red or brick-red mineral (iron ore) composed mainly of ferric oxide, Fe2O3. Ferric oxide
Fe 2O3 with impurities.
A mineral form of iron(III) oxide. It is the principal ore of iron.
A mineral form ofiron(III) oxide, Fe2O3. It is the mostimportant ore of iron and usually occursin two main forms: as a massivered kidney-shaped ore (kidney ore)and as grey to black metallic crystalsknown as specular iron ore.Haematite is the major red colouringagent in rocks; the largest depositsare of sedimentary origin. Inindustry haematite is also used as apolishing agent (jeweller’s rouge) andin paints.
Hematite; as an iron ore composed mainly of ferric oxide, is a major source of iron and is used as a pigment for rubber, paints, paper, linoleum, ceramics, dental restoratives; and as a polishing agent for glass and pre cious metals. It is also used in electrical resistors, semiconduc tors, magnets, and as a catalyst. Human exposure to hematite from underground hematite mining is principally through inhalation and/or ingestion of dusts. No estimates are available concerning the number of underground miners exposed.
Contact with hydrogen peroxide, ethyl ene oxide, calcium hypochlorite will cause explosion. Violent reaction with powdered aluminum; hydrazine, hydrogen trisulfide.
2.http://study.com/academy/lesson/iron-iii-oxide-formula-molar-mass-uses-solubility.html 3.http://www.sigmaaldrich.com/catalog/product/sigald/12342?lang=zh®ion=CN 4.http://creationwiki.org/Iron_oxide 5.http://chemistry-reference.com/q_compounds.asp?CAS=1309-37-1 6.http://www.chemicalbook.com/productchemicalpropertiescb31456867.htm
- Iron oxide black
- Transparent Yellow Iron Oxide
- Hematite, chromium green black
- Iron(III) oxide, powder, <5 micron, 98%
- LITHIUM IRON(III) OXIDE 95
- IRON(III) OXIDE HYDRATE,IRON(III) OXIDE MONOHYDRATE
- Iron hydroxide
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- YELLOW IRON OXIDE,IRON (III) OXIDE, ALPHA,IRON (III) OXIDE, GAMMA,ALPHA-IRON(III) OXIDE,IRON(III) OXIDE RED
- Iron Oxide Green
- Iron oxide
- NITROUS OXIDE
- (Diethoxymethyl)diphenylphosphine oxide
- C.I. Pigment Black 11
- Magnesium oxide
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