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Topic: Iron (II) sulfate

Related Topics

Iron(II) sulfate

Copper(II) sulfate

Vitriol

Iron(III) chloride

Iron(II) chloride

Sulfuric acid

Hydrate

Water purification

Mineral

Pyrite

Iron

Sulfur

Monoclinic

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	Iron(II) sulfate - Wikipedia, the free encyclopedia
		Its melting point is 64Â°C, and at 90Â°C it loses water of hydration to form the monohydrate, a white powder known as the mineral szomolnokite when it occurs naturally.
		Iron(II) sulfate is prepared commercially by oxidation of pyrite or by treating iron with sulfuric acid.
		It is used in the manufacture of inks, in wool dyeing as a mordant, and in water purification as a substitute for aluminium sulfate.
	en.wikipedia.org /wiki/Iron_(II)_sulfate (208 words)

	Ferrous Sulfate [Definition] (Site not responding. Last check: 2007-10-20)
		Iron(II) sulfate, also known as ferrous sulfate and as copperas ( Fe Iron is a chemical element in the periodic table that has the symbol Fe and atomic number 26.
		The name was also used for various sulfate salts, such as copper (II) sulfate (blue vitriol, or rarely Roman vitriol), zinc (II) sulfate (white vitriol), Iron (II) sulfate (green vitriol), Iron (III) sulfate (vitriol of Mars), or cobalt (II) sulfate (red vitriol)....
		Iron(II) sulfate is prepared commercially by oxidation of pyrite or by treating iron with sulfuric acid Sulfuric acid (British English: sulphuric acid), H2SO4, is a strong mineral acid.
	www.wikimirror.com /Ferrous_sulfate (1549 words)

	Iron (Site not responding. Last check: 2007-10-20)
		Heme iron is bound to the proteins hemoglobin or myoglobin, whereas nonheme iron is an inorganic compound.
		Iron has also been tried as a treatment for attention deficit disorder, but there is as yet no real evidence that it works.
		Mildly excessive levels of iron may be unhealthy for another reason: it acts as an oxidant (the opposite of an antioxidant), perhaps increasing the risk of cancer and heart disease, although this is controversial.
	healthinfo.healthgate.com /GetContent.aspx?token=e0498803-7f62-4563-8d47-5fe33da65dd4&chunkiid=21650 (2100 words)

	Iron chemistry (Site not responding. Last check: 2007-10-20)
		Iron is generally extracted in a Blast furnace.
		The anodic oxidation of the iron is usually localized in surface pits and crevices which allow the formation of adherent rust over the remaining surface area.
		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.
	wwwchem.uwimona.edu.jm /courses/iron.html (1126 words)

	United States Patent Application: 0050154146
		The presence of iron ions in the water-absorbent polymer particles prior to drying determines the effect on residual monomer, regardless of the method by which the iron ions were introduced to water-absorbent polymer particles.
		When the iron ions are added to the polymerization mixture prior to the beginning of the polymerization, or to the crosslinked hydrogel prior to, during or after comminution, followed by a drying step, the iron ions are distributed substantially uniformly through the water-absorbent polymer particle rather than concentrated at the particle surfaces.
		If the iron ions are applied prior to the comminution step, the additives are not necessary and it is even preferred to contact the solution comprising iron ions with the hydrogel in the absence of those additives since the incorporation of additives may have a negative impact on absorbent polymer properties.
	appft1.uspto.gov /netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-bool.html&r=13&f=G&l=50&co1=AND&d=PG01&s1=chitosan&OS=chitosan&RS=chitosan (9245 words)

	topic15.html
		Iron is more active than copper or tin, so the iron forms the positive ion Fe to react with negative ions in solution to form precipitates of rust on the nail.
		During electrolysis the pure copper leaves the anode and is deposited on the cathode leaving the electrode as a mass of impurities.
		When the battery is discharging, electrode A changes from lead to lead sulfate, electrode B changes from lead dioxide to lead sulfate, and the concentration of sulfuric acid decreases.
	www.uq.edu.au /_School_Science_Lessons/topic15.html (10813 words)

	Paramagnetism: Compounds
		This compound is not as strongly paramagnetic as the manganese(II) sulfate.
		When nickel(II) sulfate hexahydrate is brought near the poles of the magnet, it appears to have about the same attraction as the cobalt(II) chloride, perhaps slightly less.
		Zinc(II) sulfate heptahydrate is brought near the poles of the magnet.
	jchemed.chem.wisc.edu /JCESoft/CCA/CCA2/MAIN/PARACOM/CD2R1.HTM (438 words)

	Iron (Site not responding. Last check: 2007-10-20)
		Staples are used as a source of iron in CHM 130.
		The chloride is used for iron III in CHM 130 and 152.
		Iron II is used in the form of the sulfate and the ammonium sulfate in CHM 152 and CHM 154.
	chemlab.pc.maricopa.edu /lperiodic/Fe.html (91 words)

	AllRefer.com - ferrous sulfate, Compound & Element (Compounds And Elements) - Encyclopedia
		It is prepared commercially by oxidation of pyrite (iron sulfide) or by treating iron with sulfuric acid.
		It is used in the manufacture of inks, in wool dyeing as a mordant, and in water purification as a substitute for aluminum sulfate.
		It melts at 64°C, and at 90°C it loses water of hydration to form the monohydrate, a white, monoclinic, crystalline powder that occurs naturally as the mineral szomolnokite.
	reference.allrefer.com /encyclopedia/F/ferrouss.html (209 words)

	Vitriol - Enpsychlopedia (Site not responding. Last check: 2007-10-20)
		In antiquity, the vitriol salts were extracted from the runoff that collected inside mines of sulfide ores; the sulfates were formed naturally by the action of air on the wet sulfide minerals, and washed down by percolating water.
		The famous Persian alchemist al-Razi (864-930) discovered sulfuric acid by the dry distillation of vitriol salts, thus setting in motion a chain of discoveries that would form the foundation of modern chemistry and chemical engineering.
		In typical applications, a solution of the vitriol is mixed with lime (calcium carbonate) to produce a fine copper carbonate suspension, which is sprayed on the plant.
	www.grohol.com /psypsych/Vitriol (355 words)

	Thionine (Site not responding. Last check: 2007-10-20)
		Place the first beaker (containing the iron (II) sulfate) on the stage of an overhead projector.
		Add about 2.0 g of iron (II) sulfate heptahydrate to this beaker while it is still on the overhead and stir.
		To illustrate that the bleaching reaction in the first beaker is initiated by light, and not by heat, place several thicknesses of aluminum foil across half of the overhead projector and under the beaker so that only about half of the solution is exposed to the bright light.
	www.woodrow.org /teachers/ci/1988/thionine.htm (1044 words)

	ECPA, European Commission on Preservation and Access: Selected references
		Because both sulfuric acid and iron (II) sulfate are water-soluble, these ingredients are able to migrate and could spread ink corrosion throughout the paper.
		The distributions of iron and sulfur across the paper were then determined, and the results were compared with the levels and distribution of iron and sulfur found in a sixteenthcentury manuscript.
		Iron migration could likewise not be observed in the naturally aged samples, while contradictory results were found with respect to the migration of sulfur.
	www.knaw.nl /CFdata/epic/links1.cfm?descriptor_id=25 (4070 words)

	USGS Open-File Report 02-161
		This paper reviews the experimental data for soluble iron- and other sulfate phases and uses these data to construct models for estimating thermodynamic data at 298.15 K and 1 bar for phases for which no experimental data exist.
		The uncertainties estimated for the enthalpy and Gibbs energy of formation values, relative to the elements, derived from the model calculations used in this study are between 0.3 and 0.7 percent, with the values for the ferrous and ferric phases at the low end and those of the mixed phases at the high end.
		Goldberg, R.N., Riddell, R.G., Wingard, M.R., Hopkins, H.P., Wulff, C.A., and Hepler, L.G., 1966, Thermochemistry of cobalt sulfate and hydrates of cobalt and nickel sulfates: J. Phys.
	pubs.usgs.gov /of/2002/of02-161/OF02-161.htm (4468 words)

	Vitriol [Definition] (Site not responding. Last check: 2007-10-20)
		The name was also used for various sulfate Sulfate is the IUPAC name for the SO42- ion, consisting of a central sulfur atom single bonded to four tetrahedrally oriented oxygen atoms.
		It can also be used to break down mineral salts such as sulfates, in this case producing sulfur dioxide/sulfur trioxide gas which can be dissolved in water to obtain sulfuric acid.
		(Nowadays the reverse process is generally used, namely the metal sulfates are made by reacting oxide or other metal compound with the acid, which is obtained by other means).
	www.wikimirror.com /Vitriol (702 words)

	[No title] (Site not responding. Last check: 2007-10-20)
		Solid iron (III) oxide is heated in excess carbon monoxide.
		A solution of copper(II) sulfate is electrolyzed using inert electrodes.
		A piece of iron is added to a solution of iron (III) sulfate g.
	townsend.srhs.net /ap/u7/pred.doc (2671 words)

	[No title] (Site not responding. Last check: 2007-10-20)
		(ii) Reactions with iron(II) salts and with sulfites All three halogen solutions are able to oxidise iron(II) ions to iron(III) ions, and to oxidise sulfite ions to sulfate ions in aqueous solution.
		If any of the white precipitate does not dissolve, then sulfate ions are present, and so this solution cannot be used.
		Check that the iron(II) sulfate solution does not contain any iron(III) ions by adding 10 drops of sodium hydroxide solution and studying the colour of the precipitate formed and comparing it with the table set up in part 1.
	ps.slss.ie /downloads/ch_me_1.2complete.doc (3570 words)

	Exp 8: Which Iron is it? (Site not responding. Last check: 2007-10-20)
		By weighing the iron that is added to the copper(II) solution, and weighing the copper produced in the reaction, you will be able to determine whether iron is oxidized to iron(II) or iron(III).
		Then, assuming you start with 2.00 g iron, calculate the mass of copper produced in each case.
		When all the iron has reacted, filter the copper and rinse thoroughly with distilled water.
	www.chem.vt.edu /RVGS/GSC/lab/gsc_exp.html (257 words)

	Chemistry : Experiments with Chemical Reactions
		An iron rod is kept for some time in a beaker containing hydrated copper [II] sulfate (cupric sulfate) solution.
		The color change observed in the hydrated copper [II] sulfate solution is...
		The deposition observed on the iron rod is...
	www.syvum.com /cgi/online/serve.cgi/squizzes/chem/react2.tdf?0 (328 words)

	aneamia (Site not responding. Last check: 2007-10-20)
		Objective: To compare the effectiveness of microencapsulated iron(II) fumarate sprinkles (with and without vitamin A), iron(II) sulfate drops, and placebo sprinkles in preventing recurrence of anaemia and to determine the long-term haematological outcomes in children at high risk of recurrence of anaemia 12 months after the end of supplementation.
		Four groups were given microencapsulated iron(II) fumarate sprinkles, microencapsulated iron(II) fumarate sprinkles with vitamin A, iron(II) sulfate drops or placebo sprinkles daily for six months.
		These results may have important implications for community intervention programmes in which initial high-dose treatment is needed because of a high prevalence of anaemia.
	ghana-khrc.org /anaemia.html (291 words)

	Inorganics by grade (Site not responding. Last check: 2007-10-20)
		Aluminum sulfate octadecahydrate 98+ % grade ACS reagent 98.0-102.0 %
		Iron granules low in magnesium and manganese grade ACS reagent
		Iron(II) sulfate heptahydrate grade ACS reagent 99+ %
	www.sigmaaldrich.com /Area_of_Interest/Laboratory_Essentials/LabBasics/Inorganics_by_grade.html (880 words)

	Iron-gall ink was the most important ink in Western history
		The gallic acid was then mixed with water and vitriol (iron (II) sulfate).
		Research has shown that the high acidity of some inks and excess iron (II) sulfate are the culprits.
		To conserve documents that were written with iron-gall ink, the documents must be deacidified and the excess iron (II) compound removed or converted to a less harmful compound (Banik 2).
	www.realscience.breckschool.org /upper/fruen/files/Enrichmentarticles/files/IronGallInk/IronGallInk.html (587 words)

	Tests for Iron (II) and Iron (III) Ions (Site not responding. Last check: 2007-10-20)
		It forms the ferrous, or iron (II), ions which have a +2 charge.
		with iron (II) ammonium sulfate should produce the blue color.
		Place 5 drops of iron (II) ammonium sulfate in three different spot plate wells.
	www.montvilleschools.org /highschool/science/edorff/chemistry/irontstslab.htm (356 words)

	Articles - Sulfuric acid (Site not responding. Last check: 2007-10-20)
		The discovery of sulfuric acid is credited to the 9th century Islamic physician and alchemist Ibn Zakariya al-Razi (Rhases), who obtained the subtance by dry distillation of minerals including iron (II) sulfate heptahydrate, FeSO
		Today, sulfuric acid is listed as a Table II precursor under the 1988 United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances.
		Sulfuric acid reacts with most metals in a single displacement reaction to produce hydrogen gas and the metal sulfate.
	www.kamero.net /articles/Sulfuric_acid (561 words)

	AUFBAU1 [METALS: IRON COMPOUNDS]
		METALS : IRON COMPOUNDS Compounds of iron range in complexity from haemoglobin, whose structure is similar to both chlorophyll-a and vitamin-B12, to the examples shown in the reaction scheme.
		Construct the symbol equation for the reaction between iron and aqueous phosphoric acid.
		Copper metal is extracted from these pools either by addition of scrap iron or by electrolysis.
	www.wissensdrang.com /auf1fe2.htm (485 words)

	Name:_______________________________________________Period______________ (Site not responding. Last check: 2007-10-20)
		copper (II) sulfate + iron → iron (II) sulfate + copper
		iron (II) sulfide + hydrochloric acid → iron (II) chloride + hydrogen sulfide
		aluminum + iron (III) oxide → aluminum oxide + iron
	arapahoe.littletonpublicschools.com /Media/EDocs/hatakbequation12.htm (379 words)

	cars - Sulfuric acid
		When in the atmosphere it is part of many chemicals which make up acid rain.
		However, the manufacture of some dyes and other chemical processes require a more concentrated product, and throughout the 18th century, this could only be made by dry distilling minerals in a technique similar to the original alchemical processes.
		, which was oxidized by further heating in air to form iron(III) sulfate, Fe, which when heated to 480 °C decomposed to iron(III) oxide and sulfur trioxide, which could be passed through water to yield sulfuric acid in any concentration.
	www.carluvers.com /cars/Sulphuric_acid (708 words)

	Corrosion of Iron (Site not responding. Last check: 2007-10-20)
		Objective: The objective of this experiment is to observe over a period of several days the corrosion of iron nails in a test tube.
		Mass 2.5 to 5.0 g of copper (II) sulfate pentahydrate and place into a standard size test tube.
		The iron is oxidized and the copper is reduced.
	matse1.mse.uiuc.edu /~tw/metals/i.html (250 words)

	Sulfite Iron Agar, Base
		Brief heating (1 min at 80 Â°C) kills the vegatative cells present in the sample material whilst the bacterial spores survive and germinate.
		S-positive ones reduce the sulfite in the culture medium to sulfide, which reacts with iron to form fl iron sulfide.
		Dispense 50 ml aliquots into 100 ml flasks and heat for 1 minute at 80 Â°C in a water bath.
	www.chromocult.info /tedisdata/prods/4969-1_10864_0500.html (285 words)

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