### Discussions mindat.org

I then put analysed Fe expressed as FeO* in one column. Then I have one cell for FeO (which is the value I play with) and one for Fe2O3. Then "calculating" FeO and Fe2O3 is done the following way: First your mineral must have some constraining conditions, i.e. total number of oxygens or ions, etc. which you have as a formula in one of the cells.

Get price### Oxide Carbonate Element Conversion Table JEPSPECTRO

Oxide Carbonate Element Conversion Table The following table is used when weight based analytical results need to be converted. For example 56.0% CaO might be obtained during a microprobe calcite analysis. To convert this oxide to carbonate look at the table below.

Get price### Conversion of Fe2O3 into Fe (ppm/ppb) OnlineConversion

Dec 13, 2008 · Re: Conversion of Fe2O3 into Fe (ppm/ppb) Hi this is Aj again and thanks for the last respond.. I would to ask you if you can help me to understand and use the g/mol for exp I have bottle of 85% substance liquid or solid given info in g/mol and I need to prepare for exp 100ml or 10%.

Get price### Mineral recalculation Electron Microanalysis @ NAU

The remainder of the iron will be Fe 2 O 3. We convert the remaining FeO into Fe 2 O 3: Fe 2 O 3 = 1.1113 * (7.33 – 6.23) = 1.22 wt. % These two numbers are close to the analytical values: 6.23 vs. 5.42 for FeO and 1.22 vs. 2.12 for Fe 2 O 3. The reason that this result is not closer probably is because one or more of the other elements is

Get price### Analytical Suite Page geochem.nrcan.gc.ca

Fe is expressed in different formats. Many analytical techniques cannot distinguish between Fe 2+ and Fe 3+. In XRF analysis, Fe is conventionally reported as Fe2O3 (or Fe2O3T, for total). Fe 2+ can be measured by titration, and may then be reported as FeO.

Get price### 1 Revision 1: 2 Accurate Determination of Ferric Iron in

For each data set we backcalculated total Fe as FeO from reported FeO and/or 63 Fe2O3 and the above procedure was implemented to ensure consistency of charge balance 64 calculations. If data for H2O, After recalculation, samples AHUN, G5183, and BBKG show greatly improved

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Mar 16, 2011 · Hello everyone!Would like to ask if you know about a "universal" method to recalculate FeOtot to FeO and Fe2O3 by stoichiometry? I know about a method of Carmichael, i.e. recalculation on ulvospinel and ilmenite basis, but it seems to be only for spinels (please correct me if I

Get price### Fe + O2 > Fe2O3? Yahoo Answers

Apr 07, 2008 · In most compounds, oxygen is in oxidation state 2, so to balance these and get a neutral product molecule, you need 2 Fe^3+ ions (for a total charge of 2×+3 = +6) and 3 O^2 ions (for a total charge of 3ࡨ = 6), so the formula is Fe2O3. Fe + O2 → Fe2O3 4Fe + 3O2 → 2Fe2O3

Get price### conversion of fe to feo miniwind.nl

Fe, FeO and Fe2O3 are treated as total iron. FeO is total iron expressed as ferrous oxide and Fe2O3 is total iron expressed as ferric oxide. See Calculation>Provided menu to convert Fe data to total or explicit Fe states if they are not already available in the dataset. €???? I know about a method of Carmichael, i.e. recalculation on

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Recalculation of a feldspar anlaysis (all Fe as FeO) and solving for Fe+3 An Ab Or BaO Ba be Fe3+, the total for the analysis will inrease. End member %s are based on Ca, Mg, Fetotal ratios only. Recalculation of a garnet anlaysis (all Fe as FeO) and solving for Fe+3 cubic octahedral tetrahedral 4fold 6fold 8fold ideal almandine grossular

Get price### conversion of fe to feo miniwind.nl

Fe, FeO and Fe2O3 are treated as total iron. FeO is total iron expressed as ferrous oxide and Fe2O3 is total iron expressed as ferric oxide. See Calculation>Provided menu to convert Fe data to total or explicit Fe states if they are not already available in the dataset. €???? I know about a method of Carmichael, i.e. recalculation on

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2004 B (repeated in thermodynamics) 2 Fe (s) + 3 2 O 2(g) Fe 2 O 3(s) ∆H f˚ = 824 kJ mol–1 Iron reacts with oxygen to produce iron(III) oxide as represented above. A 75.0 g sample of Fe (s) is mixed with 11.5 L of O 2(g) at 2.66 atm and 298 K. (a) Calculate the number

Get price### The total number of atoms in Fe2o3 is answers.com

Because C and Fe appear in uncombined, atomic form in this equation we can ignore them initially and just look at the Fe2O3 and CO2. There are an odd number of atoms of O in the Fe2O3 and a odd

Get price### fe2o3 to feo conversion eubibliografie.eu

Fe, FeO and Fe2O3 are treated as total iron. FeO is total iron expressed as ferrous oxide and Fe2O3 is total iron expressed as ferric oxide. See Calculation>Provided menu to convert Fe data to total or explicit Fe states if they are not already available in the dataset.

Get price### How to convert Fe2O3 to Fe? – Tiba Land Mining & Import

To convert Fe2O3 to Fe divide by 1.4298. It is worked out from the atomic weights of the elements, and calculated as a proportion: Atomic weight Fe = 55.847g/mol, atomic weight oxygen = 15.999g/mol

Get price### Ferrous oxide FeO PubChem

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Get price### fe2o3 to feo conversion eubibliografie.eu

Fe, FeO and Fe2O3 are treated as total iron. FeO is total iron expressed as ferrous oxide and Fe2O3 is total iron expressed as ferric oxide. See Calculation>Provided menu to convert Fe data to total or explicit Fe states if they are not already available in the dataset.

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4 Fe + 3 O 2 è 2 Fe 2O 3 4. How many moles of Fe 2O 3 g Fe 2mol mol Fe O 3 g Fe 2O 3 = g FeO 3 55.85 4 1 61.0 17.0 g O 2 1 mol O 2 mol Fe 2O 3 g O 2 mol3 O 2 g Fe 2O 3 = g Fe 2O 32.00 1 56.6 125 g Fe 1 mol Fe 55.85 g Fe 4 mol Fe mol O 2 g O 2 g O 2 = 1 53.7 g 100. g C 4H 10 1

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This program was created with a lot of help from: The book "Parsing Techniques A Practical Guide" (IMHO, one of the best computer science books ever written.) The Gold Parsing System (Hats off! What a great software product!) The Calitha GOLD engine (c#) (Made it

Get price### Molecular weight of FeO Convert Units

››More information on molar mass and molecular weight. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together.

Get price### How do i calculate the mass percent of iron for the iron

Jul 11, 2010 · How do i calculate the mass percent of iron for the iron ores Fe2O3, Fe3O4, and FeCO3? I understand how were supposed to add it all up and divide the atomic mass of whatever element were working on like Fe for example is 55.845 / the total sum of the atomic masses. In this case 55.845/159.6882= .349712*100=34.97% so how is the answer 69.8%?

Get price### Constructing mineral formulas: chemical analyses to

Basic terminology Atomic weight: tabulated in the periodic table of the elements (as well as table 10.1 in your text) average mass of an atom relative to 1/12 the mass of 12C in its neutral & elilectronic ground state Molecular weight: weight of all the atoms in a given molecule.

Get price### Oxide Carbonate Element Conversion Table JEPSPECTRO

Oxide Carbonate Element Conversion Table The following table is used when weight based analytical results need to be converted. For example 56.0% CaO might be obtained during a microprobe calcite analysis. To convert this oxide to carbonate look at the table below.

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Recalculation of a feldspar anlaysis (all Fe as FeO) and solving for Fe+3 An Ab Or BaO Ba be Fe3+, the total for the analysis will inrease. End member %s are based on Ca, Mg, Fetotal ratios only. Recalculation of a garnet anlaysis (all Fe as FeO) and solving for Fe+3 cubic octahedral tetrahedral 4fold 6fold 8fold ideal almandine grossular

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Get price### total recalculation to feo and fe2o3 delelisphotography.be

(10% of total Fe). The Fe 2 O 3 content was estimated from FeO liq and a Fe2O3 liq data for SiO 2rich melts, in presence of a significant proportion of ferric iron and for both anhydrous and hydrous conditions. 3. Experimental strategy 3.1. Principle In this study, we have retained the principle of measuring a FeO

Get price### Separating Fe into FeO & Fe2O3 probesoftware.com

Nov 12, 2014 · Here is a paper which has a complete recalculation of garnet formula from EPMA data: A. Locock, Computers & Geosciences, 2008, v 34, p 17341780: "An Excel spreadsheet to recast analyses of garnet into endmember components, and a synopsis of the crystal chemistry of

Get price### MINERAL: A program for the propagation of analytical

The conversion of FeO (Fe 2+) to Fe 2 O 3 (Fe 3+) is performed within MINERAL users should ensure that the original data input is in wt% FeO. 3.1.9. Mica. Mica is a complex mineral for which there are a number of recalculation methods. MINERAL performs its calculations based on normalization to 22 oxygens per formula unit. Halogens (F and Cl

Get price### MINERAL FORMULA CALCULATIONS Sarah Lambart

mgo mno feo cao(+2) ! na 2o k 2o h 2o (+1) ion complexes of important ions. example 1: weight percent to formula 2o fe 2o 3 al 2o 3 sio 2 total . problem 3: solid solution formula to weight percents! formula is na(al 0.4fe 0.6)si 2o 6

Get price### The conversion of iron oxidesFe3O4 to Fe2O3

The conversion of iron oxidesFe3O4 to Fe2O3 2004. Q. I am a postgraduate student doing research in converting iron oxide Fe 3 O 4 (magnetite) into Fe 2 O 3 (hematite). As we know, Fe 3 O 4 can be considered as crystal 1:1 ratio of FeO (Fe +2) and Fe 2 O 3 (Fe +3) and FeO can be oxidized into hematite at 600 °C.

Get price### MINERAL FORMULA CALCULATIONS Sarah Lambart

mgo mno feo cao(+2) ! na 2o k 2o h 2o (+1) ion complexes of important ions. example 1: weight percent to formula 2o fe 2o 3 al 2o 3 sio 2 total . problem 3: solid solution formula to weight percents! formula is na(al 0.4fe 0.6)si 2o 6

Get price### How do you calculate the Fe content in FeO and Fe2O3?

2 for oxygen. The oxidation number of iron depends on the oxide. +2 for Fe in FeO. +3 for Fe in Fe2O3. +2 and +3 for Fe in Fe3O4. (Note: Fe3O4 can be considered as a mixture of FeO and Fe2O3)

Get price### The Fe203/FeO ratio of basalt analyses: an appeal for a

basalts are high in total FeO or Ti02. Irvine & Baragar (1971) therefore tried to improve Fe2Os and FeO and have plotted the Fe^O,/ FeO ratios in fig. 1. There are 25 points in recalculation procedures. This value of 0.15 must lie very close to the true value, not only

Get price### The conversion of iron oxidesFe3O4 to Fe2O3

The conversion of iron oxidesFe3O4 to Fe2O3 2004. Q. I am a postgraduate student doing research in converting iron oxide Fe 3 O 4 (magnetite) into Fe 2 O 3 (hematite). As we know, Fe 3 O 4 can be considered as crystal 1:1 ratio of FeO (Fe +2) and Fe 2 O 3 (Fe +3) and FeO can be oxidized into hematite at 600 °C.

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