
	Where results make sense

Topic: Iron oxide

Related Topics

Iron hydroxide

Iron(III) oxide

Copper oxide

Oxide

Iron(II) oxide

Ferrous ferric oxide

Rust

Ferric oxide

Hematite

Copper(II) oxide

Aluminum oxide

Haematite

Iron

Feroxyhyte

In the News (Sun 22 Nov 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	iron oxide
		Steel wool burns in air with a very bright white light, giving off a large amount of energy, and white smoke with is iron oxide in very fine particles.
		The steel wool changes color to a more gray appearance which is the iron oxide.
		Iron Oxide: Determine the formula of a compound formed by the reaction of iron and oxygen.
	www.elmhurst.edu /~chm/vchembook/143Afeoxide.html (403 words)

	Iron Oxides
		That the ratio (iron atoms)/(oxygen atoms) is 4/6, or 2/3, and nothing else is an example of the law of definite proportions.
		If iron is heated in the presence of less oxygen, it is possible to synthesize another iron oxide, Fe, called magnetite.
		It could be that one of the two irons is neutral and the other is +6e, or maybe both are +3e, or maybe even one is –10e and the other is +16e, for all we know now.
	www.dartmouth.edu /~genchem/0304/winter/5w04/lecture/rust.html (799 words)

	376. Iron oxides and hydrated iron oxides (WHO Food Additives Series 6)
		IRON OXIDES AND HYDRATED IRON OXIDES BIOLOGICAL DATA BIOCHEMICAL ASPECTS The vital biological role of iron is well established.
		Iron preparations have been used as the standard treatment of iron- deficiency anaemia in man and animals.
		These are not relevant to the evaluation of iron oxide and hydroxide pigments as food colours.
	www.inchem.org /documents/jecfa/jecmono/v06je23.htm (386 words)

	Iron and Steel Manufacture - MSN Encarta
		A special group of iron alloys, known as ferroalloys, is used in the manufacture of iron and steel alloys; they contain from 20 to 80 percent of an alloying element, such as manganese, silicon, or chromium.
		In these larger furnaces, the iron ore in the upper part of the furnace was first reduced to metallic iron and then took on more carbon as a result of the gases forced through it by the blast.
		Although almost all the iron and steel manufactured in the world is made from pig iron produced by the blast-furnace process, other methods of iron refining are possible and have been practiced to a limited extent.
	encarta.msn.com /encyclopedia_761559225/Iron_and_Steel_Manufacture.html (1521 words)

	ironsmelt (Site not responding. Last check: )
		IRON SMELTING An understanding of the smelting process and the technological details of the Oswego iron smelting operations, should allow the reader to identify features of the smelters and to recognize the operational concerns of the iron smelting process appearing in the literature.
		The chemical process reduces iron oxide to pure iron by heating the ore to a liguid state and having the oxide bond to the carbon of the charcoal fuel in various formations of carbon mono- and di- oxides.
		The iron is brought to the surface as a carbonate and carried on the water to stagnant pools and marshes.
	home.europa.com /~heritage/ironsmelt.html (2605 words)

	Iron Chlorosis in Turfgrass
		Although iron is not part of the chlorophyll molecule, it is one of the nutrients essential for chlorophyll synthesis.
		Iron chlorosis first develops in new growth and appears as yellowish-green leaves, usually as an interveinal yellowing, giving the leaf a striped appearance.
		Iron chlorosis is attributed to reduced availability of iron in calcareous soils and may also be associated with high levels of bicarbonate and phosphate in plant tissue.
	aggie-horticulture.tamu.edu /plantanswers/turf/iron.html (1343 words)

	AISI \| How A Blast Furnace Works
		The iron ore, pellets and sinter then become the liquid iron produced in the blast furnace with any of their remaining impurities going to the liquid slag.
		The iron ore, pellets and sinter are reduced which simply means the oxygen in the iron oxides is removed by a series of chemical reactions.
		At the same time the iron oxides are going through these purifying reactions, they are also beginning to soften then melt and finally trickle as liquid iron through the coke to the bottom of the furnace.
	www.steel.org /AM/Template.cfm?Section=Home&template=/CM/HTMLDisplay.cfm&ContentID=5433 (2474 words)

	Index Properties of Soils Rich in Iron Oxides (Site not responding. Last check: )
		Iron oxides are known to have cementation and aggregation behaviours in soil.
		This paper describes an experimental programme conducted to examine the index properties of iron oxides rich soils, which are affected by iron oxides aggregation, cementation, and magnetic properties.
		The liquid limits of the curing samples are decreased significantly due to the growth of iron oxides cementation and aggregation in soil.
	www.pubs.asce.org /WWWdisplay.cgi?0601479 (205 words)

	Iron
		Also, substantial quantities of iron are consumed as paint pigments, in cement, in refractory materials as a fluxing agent used in smelting nonferrous metals, and as a constituent of some catalysts.
		Magnetic iron ore, magnetite, is used as shielding materials in nuclear power plants, heavy aggregate in concrete, and as a heavy-mineral medium in some metal refining mills.
		Iron minerals are common throughout Arkansas, but rarely are they in sufficient quantities to be of commercial value.
	www.state.ar.us /agc/iron.htm (683 words)

	Mineral Information Institute - IRON ORE
		The principle ores of iron are Hematite, (70% iron) and Magnetite, (72 % iron).
		Iron ore is the raw material used to make pig iron, which is one of the main raw materials to make steel.
		Iron and steel face continual competition with lighter materials in the motor vehicle industry; from aluminum, concrete, and wood in construction uses; and from aluminum, glass, paper, and plastics for containers.
	www.mii.org /Minerals/photoiron.html (1070 words)

	Defects in Metal Oxides
		Iron oxide and other metal oxides are used in thermite reactions, and this has been applied in many ways, including welding in spaceship repairs.
		Iron oxides are also the raw material for all magnets and magnetic materials used for computer disks and recording tapes.
		The problem with iron as well as many other metals is that the oxide formed by oxidation does not firmly adhere to the surface of the metal and flakes off easily causing "pitting".
	www.science.uwaterloo.ca /~cchieh/cact/applychem/metaloxide.html (1166 words)

	American Academy of Micropigmentation
		Inorganic Pigments: Iron oxides (Fe2O3 and Fe3O4) lack a carbon molecule and are therefore "inorganic".
		Iron oxides in nature (dirt) are often combined with toxic metals like lead, arsenic, mercury, antimony and selenium.
		Iron oxide molecules are crystals and are in different shapes.
	www.micropigmentation.org /updates/clinical_updates/cosmetic_colorants.php (904 words)

	By Mineral - Iron Oxides
		This is often incorrectly attributed to staining from iron oxides, whereas a more generally correct explanation (at least, in eastern Australia) is the colour comes from a variety of soil-derived humic and fulvic acids.
		Iron oxyhydroxides are present to a lesser extent.
		Again the original source of iron is unknown, but there are several potential sources: nearby mafic to intermediate dykes contain pyrite; the volcanics to the east; the pyritic radiolarian cherts to the west.
	www.speleonics.com.au /jills/bymineral/iron.html (959 words)

	Kolor Source
		Synthetic iron oxides are manufactured to eliminate the contamination of naturally occurring iron oxides.
		Examples of the endurance of iron oxides are the cave paintings which have endured thousands of years in darkness.
		Iron oxides contain nickel and a large percentage of the population tested is allergic to nickel (17.9%).
	www.kolorsource.com /color_facts/index.htm (1055 words)

	iron
		Iron is a relatively abundant element in the universe.
		Iron is found native as a principal component of a class of meteorites known as "siderites", and is a minor constituent of the other two classes.
		Iron is a vital constituent of plant and animal life, and appears in hemoglobin.
	www.speclab.com /elements/iron.htm (928 words)

	03/12/1993 - Iron oxides as used in pigment coloring operations.
		FDA approval of iron oxide as a food colorant is not entirely relevant to occupational exposure from iron oxide.
		Therefore, it is inappropriate to conclude that FDA approval, as an approved colorant, is evidence that iron oxide dust is not hazardous.
		For example, employee exposure to iron oxide occurs during the manufacturing processes associated with iron oxide (powder, ore).
	www.osha.gov /pls/oshaweb/owadisp.show_document?p_table=INTERPRETATIONS&p_id=21063&p_text_version=FALSE (773 words)

	oxides
		Iron oxides and hydroxides are formed by protonation and release of Fe ions out of primary or secondary minerals and / or oxidation.
		Sesquioxides are a term for the oxides of iron and aluminium and sesquioxic coatings (such as ferrans) can be formed by reduction and solution of Fe under anaerobic conditions and their subsequent oxidation and depositon in aerobic zones.
		Iron oxides and hydroxides are very stable under aerobic conditions, but they become more soluble under anaerobic conditions (low redox potentials).
	www.soils.wisc.edu /courses/SS325/oxides.htm (3245 words)

	AUFBAU1 [METALS: EXTRACTION of IRON]
		Furthermore, iron and many of its compounds show catalytic activity (e.g., iron powder is used in the Haber synthesis of ammonia, and several iron-containing enzymes are involved in nitrogen-fixation, in photosynthesis, and in respiration).
		And so, when iron (or steel) is likely to rust, it is: painted, coated with plastic, or plated with another metal, all of which provide a physical barrier; or attached to a more reactive metal, which acts as a 'sacrificial anode'.
		Galvanization protects iron from rusting, as follows: the layer acts as a physical barrier to dioxygen and water; and then the zinc acts as a sacrificial anode when this layer is breached.
	www.wissensdrang.com /auf1fe1.htm (752 words)

	Kern County Iron Deficiency in Vegetables - Vegetable Crops/Plant Pathology - Kern County
		Iron deficiency is usually not a problem in vegetables because iron is almost always available in plentiful quantities in most soils.
		Iron deficiency symptoms first appear on the younger leaves as a yellowing of the leaf blades with the veins and petioles remaining green (interveinal chlorosis).
		Iron salts that have low solubility such as iron oxides, carbonates, phosphates, hydroxides and some forms of insoluble chelates are created in certain soil types that make iron not readily available to plants.
	cekern.ucdavis.edu /Custom_Program573/Iron_Deficiency_in_Vegetables.htm (752 words)

	Iron chemistry
		Iron is the most abundant transition metal on Earth (62000 ppm).
		Galvanised iron is the name given to iron that has been dipped into molten zinc (at about 450°C) to form a thin covering of zinc oxide.
		The iron oxide coating formed has been found to be impervious to water and oxygen so no further corrosion can occur.
	wwwchem.uwimona.edu.jm:1104 /courses/iron.html (1248 words)

	Environmental Defense - Inputs to an Integrated Steel Mill
		After extraction from the ground, iron ore is crushed into progressively smaller pieces from which the iron-containing particles are separated, usually with magnets.
		The iron particles are combined with a small amount of binding mineral and formed into pellets for easy transport to a steel mill.
		The pellets contain around 60 percent iron in the form of iron oxides, or rust; higher iron content is achieved through processes that concentrate the ore.
	www.environmentaldefense.org /article.cfm?contentid=4265 (462 words)

	om_feal
		Aluminum oxides are thought to be better because they have a flat or platy structure, rather than the spherical structure of iron oxides (El-Swaify and Emerson, 1975), and that aluminum oxides are also chemically more stable (Goldberg and Glaubig, 1987).
		(1968) remarked the iron oxide is inefficient as an agent of aggregate stability because iron oxides occur as discrete or free particles in soils.
		Because iron and aluminum oxides in soils vary widely in crystallinity and particle size, a poor correlation between their contents and aggregation does not necessarily mean that they do not contribute to aggregation (Hsu, 1989).
	www.agri.upm.edu.my /~chris/as/om_feal.html (692 words)

	Premium Minerals® - Premium Mineral Makeup at Discount Cosmetics Prices!
		51705 FunrSun: Mica, Titanium Dioxide 9%, Zinc Oxide 9%
		51705BA FunrSun Barite: Mica, Titanium Dioxide 9%, Zinc Oxide 9%, Iron Oxide
		53552 Sienna Opal: Mica, Titanium Dioxide, Iron Oxides, Tin Oxide
	prmnl.com /shop/ingredients.php (1475 words)

	Code of Federal Regulations: 21 CFR 73.2250 - Iron oxides (Site not responding. Last check: )
		Iron oxides shall conform to the following specifications, all on an ``as is'' basis: Arsenic (as As), not more than 3 parts per million.
		Iron oxides are safe for use in coloring cosmetics generally, including cosmetics applied to the area of the eye, in amounts consistent with good manufacturing practice.
		Certification of this color additive is not necessary for the protection of the public health, and therefore batches thereof are exempt from certification pursuant to section 721(c) of the act.
	www.cfsan.fda.gov /~lrd/cf732250.html (279 words)

	The World Market for Iron Oxides, Iron Hydroxides, and Earth Colors of 70% or More
		I have developed a methodology, based on macroeconomic and trade models, to estimate the market for iron oxides, iron hydroxides, and earth colors of 70% or more combined iron evaluated as fe203 by weight for those countries serving the world market via exports or supplying from various countries via imports.
		Chapter 4 does the same, but for imports of iron oxides, iron hydroxides, and earth colors of 70% or more combined iron evaluated as fe203 by weight for all countries in the world.
		The SITC code that defined "iron oxides, iron hydroxides, and earth colors of 70% or more combined iron evaluated as fe203 by weight" is 52254.
	www.mindbranch.com /Iron-Oxides-Hydroxides-R307-21045 (999 words)

	Women in Mining
		Iron oxide, one of the most important color minerals, was used by Cleopatra in the form of red ochre as rouge.
		Chrome oxides are used for greens; manganese violet for purple; ground lapis lazuli may be added to makeup for blue.
		Titanium dioxide is also a natural sunblock and, like talc, iron oxides, and gold, it has been used for centuries.
	www.womeninmining.org /makeup1.htm (714 words)

	Recovery of iron oxides from polluted coal mine drainage (US5954969)
		Iron contaminated water is sampled to determine a bicarbonate to iron molar ratio.
		The flow of the water is directed to a collection basin assembly when the bicarbonate to iron molar ratio is at least 2 to 1.
		After a period of time, the iron oxide material in the collection basin assembly can be harvested and used for commercial purposes without excessive further treatment.
	www.delphion.com /details?pn=US05954969__ (403 words)

	Integral Concrete Colorant, Concrete Chemicals and coatings by LiquiBlack
		Iron oxides are durable, UV resistant, colorants which can be used to color concrete, grout, mortar, stucco, swimming pool plaster, and wall plaster.
		iron oxides may be purchased in one-pound bags, five-pound bags, or fifty-pound bags.
		Add as much iron oxide color in the test amount of cement until the desired color is achieved.
	www.liquiblack.com /request.htm (298 words)

	iron and steel
		The common ores of iron are both iron oxides, and these can be reduced to iron by heating them with carbon in the form of coke.
		Calcium oxide is a basic oxide and reacts with acidic oxides such as silicon dioxide present in the rock.
		The still impure molten iron is mixed with scrap iron (from recycling) and oxygen is blown on to the mixture.
	www.chemguide.co.uk /inorganic/extraction/iron.html (1287 words)

	clayart - thread 'iron oxides' (Site not responding. Last check: )
		to find out both iron oxides, but my ceramic resouses are limited.
		iron, yellow iron, spanish iron, iron chromite, and so on...
		Iron oxide in a recipe should apply to the normal Red Oxide of Iron.
	www.potters.org /subject26236.htm (231 words)

	Iron Oxide Pigments,Natural Iron Oxide Pigments,Suppliers of Iron Oxide Pigments
		Iron Oxide Pigments,Natural Iron Oxide Pigments,Suppliers of Iron Oxide Pigments
		One or more ferrous or ferric oxide and many other impurities such as clay, manganese or organics are all included in the formation of the natural Iron Oxide Pigments.
		The main characteristics of natural iron oxide pigments are: these are light fast, non bleeding, nontoxic and weather resistant.
	www.dyespigments.com /natural-iron-oxide-pigments.html (210 words)

Try your search on: Qwika (all wikis)