Ferrous oxide supplier | CasNO.1345-25-1

Name
IRON (II) OXIDE
EINECS 215-721-8
CAS No. 1345-25-1
Article Data463
CAS DataBase
Density 5.7 g/mL at 25 °C(lit.)
Solubility Insoluble in water and alkalies. Soluble in HCl, H{2}SO{4}. Slightly soluble in HNO{3}Insoluble in water, alcohol and alkali. Soluble in hydrochloric acid and sulfuric acid. Slightly soluble in nitric acid.
Melting Point 1369 °C
Formula FeO
Boiling Point
Molecular Weight 71.8464
Flash Point
Transport Information
Appearance solid
Safety 16-33-7/9
Risk Codes 11
Molecular Structure
Hazard Symbols F
Synonyms C.I. 77489;Iron monooxide;Iron monoxide;Iron oxide (FeO);Iron(II) oxide;Natural wuestite;
PSA 17.07000
LogP -0.12130

Synthetic route

: iron(III) oxide

: 1345-25-1
iron(II) oxide

Conditions

Conditions	Yield
With water; hydrogen In neat (no solvent) byproducts: Fe; formation of FeO at 800°C;;	92%
With water; hydrogen In neat (no solvent) byproducts: Fe; formation of FeO at 700°C;;	85%
With hydrogen In neat (no solvent) redn. of Fe2O3 in a stream of H2 below red heat;;

: 1-trimethylsilyl-μ3-S,S'-ethylenedithiolatohexacarbonyldiiron

A: 1345-25-1
iron(II) oxide

B: iron sulfide

C: (CH3)3SiC2H3S10Fe3

Conditions

Conditions	Yield
In decane byproducts: Me3SiCHCH2, CH2CH2, CH3CHCH2; O2 atmosphere; decompn. (170°C, 8 h); further byproducts: (Me3Si)2O, (Me2SiO)3 and (Me2SiO)4; GLC, chromato-mass spectroscopy;	A 20% B 70% C 10%

...Expand

: iron(II,III) oxide

: 7439-89-6
iron

: 1345-25-1
iron(II) oxide

Conditions

Conditions	Yield
In neat (no solvent) formation of FeO during 24 h at 600°C;;	51%
In neat (no solvent) formation of FeO during 24 h at 592°C;;	24%
In neat (no solvent) preparation of FeO in the high-frequenzy induction furnace;;

: iron sulfide

: 7439-89-6
iron

: calcium oxide

A: 1345-25-1
iron(II) oxide

B: iron calcium oxysulfide

Conditions

Conditions	Yield
In neat (no solvent) pressed into pellets, fired at 1190 K for 4 h in flowing He; obtained as a mixt.;	A 1% B n/a

...Expand

: 13463-40-6
iron pentacarbonyl

: 1333-74-0
hydrogen

A: iron(II,III) oxide

B: 1345-25-1
iron(II) oxide

C: iron(III) oxide

D: cementite

E: 7439-89-6
iron

Conditions

Conditions	Yield
In neat (no solvent, gas phase) mixt. of vapor of Fe(CO)5 and H2 decomposed by plasma-chemical decomposition on Al2O3; monitored by XRD;	A n/a B n/a C n/a D 1% E n/a

...Expand

: iron oxide

: iron(II) titanate

A: 1345-25-1
iron(II) oxide

B: Fe2.40Ti0.60O4

Conditions

Conditions	Yield
In neat (no solvent, solid phase) ball milled Fe2TiO4 was mixed with stoich. amts. of Fe3O4; ball milled for 10 min; placed in steel crucible; heated at 950°C for 60 h under Ar; cooled in furnace under Ar atm. to 400°C; air cooled to room temp.; identified by X-ray diffraction;	A 1% B n/a

...Expand

: 13463-40-6
iron pentacarbonyl

A: 1345-25-1
iron(II) oxide

B: iron(III) oxide

Conditions

Conditions	Yield
In N,N-dimethyl-formamide at 160℃; for 2h; Heating / reflux;

: 765207-04-3
iron(III) phosphate

: 7439-89-6
iron

A: 1345-25-1
iron(II) oxide

B: phosphorus pentoxide

Conditions

Conditions	Yield
In neat (no solvent) the equilibrium constant was determined;;

...Expand

: iron(II) metasilicate

: 1345-25-1
iron(II) oxide

Conditions

Conditions	Yield
With methyllithium In neat (no solvent) byproducts: SiO2; heating iron(II)-silicate for 1 h at 1200°C in presence of excess of lime; dissociation in FeO and SiO2;;	>99

: iron(III) oxide

A: iron(II,III) oxide

B: 1345-25-1
iron(II) oxide

Conditions

Conditions	Yield
With carbon In neat (no solvent, solid phase) byproducts: CO, CO2; under Ar, mixt. of Fe2O3 and C heated at 800°C for 1 h; identified by X-ray analysis;

: iron(III) oxide

A: iron(II,III) oxide

B: 1345-25-1
iron(II) oxide

C: 7439-89-6
iron

Conditions

Conditions	Yield
With H2 or CO In neat (no solvent) redn. of Fe2O3 in a stream of H2 or CO; first formation of Fe3O4; at higher temp. formation of FeO and Fe;;
With H2 or CO In neat (no solvent) redn. of Fe2O3 in a stream of H2 or CO; first formation of Fe3O4; at higher temp. formation of FeO and Fe;;

...Expand

: iron(III) oxide

A: 1345-25-1
iron(II) oxide

B: 7439-89-6
iron

Conditions

Conditions	Yield
With carbon dioxide; carbon monoxide In neat (no solvent) byproducts: C; redn. of at 400°C calcined Fe2O3 starts at 200-230°C; with begin of FeO-formation starts pptn. of carbon; pptn. of carbon ends with formation of Fe;;
In neat (no solvent) redn. of Fe2O3 in carbon to FeO and Fe below 100°C;;

: iron(III) oxide

A: 1345-25-1
iron(II) oxide

B: 80937-33-3
oxygen

Conditions

Conditions	Yield
dissocn. of Fe2O3 in glass to O2 and FeO about 1300°C;;
decompn. of Fe2O3 to FeO and oxygen;;
dissocn. of Fe2O3 in glass to O2 and FeO about 1300°C;;
decompn. of Fe2O3 to FeO and oxygen;;

: boron trioxide

: iron(III) oxide

: 1345-25-1
iron(II) oxide

Conditions

Conditions	Yield
In melt byproducts: 3B2O32FeO2Fe2O3;; melting in the air for a long period of time;;

: iron(III) oxide

: 7732-18-5
water

: 1333-74-0
hydrogen

: 1345-25-1
iron(II) oxide

Conditions

Conditions	Yield
exactly controlled H2O/H2 ratio, sufficiently high flow rate of gas mixt., use of lowly sintered well powdered Fe2O3;

...Expand

: iron sulfide

: iron(III) oxide

A: 1345-25-1
iron(II) oxide

B: 7446-09-5
sulfur dioxide

Conditions

Conditions	Yield
In neat (no solvent) byproducts: Fe3O4; heating of an oxide-sulfide-mixture in an N2-stream;; no formation of FeO below 900°C;;	A 0% B n/a

...Expand

: iron(III) oxide

: zinc sulfide

A: 1345-25-1
iron(II) oxide

B: 7446-09-5
sulfur dioxide

C: zinc(II) oxide

Conditions

Conditions	Yield
direct smelting of sulfide ores; unreduced Fe2O3 roasts zinc blende;;

...Expand

: iron(III) oxide

: 7439-89-6
iron

: 1345-25-1
iron(II) oxide

Conditions

Conditions	Yield
In neat (no solvent) neutral atmosphere; 1300°C;
In melt equilibrium constant was determined;;
In neat (no solvent) complete reaction at elevated temps.;;

: iron(III) oxide

: iron

A: 1345-25-1
iron(II) oxide

B iron oxide: iron oxide

Conditions

Conditions	Yield
In neat (no solvent, solid phase) powders of Fe2O3 + αFe (25 or 50%) were treated in a planetary high-energy ball mill for up to 3 h; powder XRD; Moessbauer spectra;

...Expand

: iron(III) oxide

: 1333-74-0
hydrogen

: 1345-25-1
iron(II) oxide

Conditions

Conditions	Yield
280-300°C;
500°C;

: iron(III) oxide

: 22205-45-4
copper(I) sulfide

A: copper(I) oxide

B: 1345-25-1
iron(II) oxide

C: iron(III) sulfate

D: copper(II) ferrite

E: copper(II) oxide

Conditions

Conditions	Yield
With air byproducts: SO2, SO3; mixing of Fe2O3 and Cu2S (1:1) mech. before roasting; information about the react. eqs. in detail, about dependence on temp. from 300 till 550°C and about the effect of Fe2O3; further products;
With air byproducts: SO2, SO3; mixing of Fe2O3 and Cu2S (1:1) mech. before roasting; information about the react. eqs. in detail, about dependence on temp. from 300 till 550°C and about the effect of Fe2O3; further products;

...Expand

: iron(III) oxide

: 22205-45-4
copper(I) sulfide

A: copper(I) oxide

B: 1345-25-1
iron(II) oxide

C: copper(II) ferrite

D: copper(II) oxide

Conditions

Conditions	Yield
byproducts: SO2, SO3; at roasting of Cu2S in presence of Fe2O3;

...Expand

: indium(III) oxide

: 7439-89-6
iron

A: 1345-25-1
iron(II) oxide

B: 7440-74-6
indium

Conditions

Conditions	Yield
In neat (no solvent) (Ar); In2O3 and Fe reacted in 1:1 or 1:2 or 2:1 molar ratio; powdered inmortar; sealed under vacuum in quartz ampoule; heated to 723 K and with 0.5 K/h to 973 K; maintained for 7 days; cooled to 0.8 K/h to 473 K; le ft standing at room temp.;

...Expand

: iron sulfide

: 7732-18-5
water

A: 1345-25-1
iron(II) oxide

B: 7783-06-4
hydrogen sulfide

...Expand

: 7732-18-5
water

: 7439-89-6
iron

A: 1345-25-1
iron(II) oxide

B: iron(III) oxide

Conditions

Conditions	Yield
In neat (no solvent) byproducts: H2; thin layer of FeO (71.5%) and Fe2O3 (26.34%) is formed inside a steam pipe; better reaction in the presence of O2 or CO2, formation of some H2;;
In neat (no solvent) byproducts: H2; thin layer of FeO (71.5%) and Fe2O3 (26.34%) is formed inside a steam pipe; better reaction in the presence of O2 or CO2, formation of some H2;;

...Expand

: 7732-18-5
water

: 7439-89-6
iron

A: iron(II,III) oxide

B: 1345-25-1
iron(II) oxide

C: iron(III) oxide

Conditions

Conditions	Yield
In neat (no solvent) react. of Fe with water vapor at 700°C; cooling on air;; radiographic anal.;;

...Expand

: 7732-18-5
water

: 7439-89-6
iron

: 1345-25-1
iron(II) oxide

Conditions

Conditions	Yield
With oxygen In neat (no solvent) byproducts: Fe2O3, Fe3O4; iron foil was treated with a steam/N2 mixt. with added air (0.13-1.44% O2) at 800°C for 1 h; product samples (thin films) were investigated by gravimetric anal., Auger and X-ray spectroscopy, scanning electron microscopy;
In neat (no solvent) byproducts: Fe3O4; iron foil was treated with steam/N2 mixts. at 540-800°C for 3-17h; growth rate and composition of the product depend on the foil thickness, H2O flow rate, reaction time and temp.; product samples (thin films) were investigated by gravimetric anal., Auger and X-ray spectroscopy, scanning electron microscopy;
In neat (no solvent) byproducts: H2; oxidation of Fe with water vapor above 500°C;;

: 7732-18-5
water

: 7439-89-6
iron

A: 1345-25-1
iron(II) oxide

B: 1333-74-0
hydrogen

Conditions

Conditions	Yield
In water reaction of iron shavings with water at 100°C in air or N2 atmosphere;;
H2O/H2 equil. ratio detd.;
study of chemical equil.;

...Expand

: pyrite

: 7732-18-5
water

: 1345-25-1
iron(II) oxide

Conditions

Conditions	Yield
In neat (no solvent) heating pyrite in water vapor at 300-400°C;;

: 75-15-0
carbon disulfide

: 1345-25-1
iron(II) oxide

: 124-40-3
dimethyl amine

: ferric dimethyldithiocarbamate

Conditions

Conditions	Yield
With zinc(II) oxide In water at 20℃; for 8h; Reflux; Large scale;	99%

...Expand

: 1345-25-1
iron(II) oxide

: strontium hydrogenphosphate

: 86119-84-8, 7664-38-2
phosphoric acid

: SrFe3(9+)*3PO4(3-)=SrFe3(PO4)3

Conditions

Conditions	Yield
In water hydrothermal method; heating (sealed quartz tube, 648 K, 3 d), cooling (2 h to room temp.); filtration, washing (water, acetone), drying (335 K, 1 h); elem anal. (EDX), detn. by powder XRD;	91%

...Expand

: 1345-25-1
iron(II) oxide

: iron(III) oxide

: 7722-76-1
ammonium dihydrogen phosphate

: ammonium iron(II,III) phosphate

Conditions

Conditions	Yield
In water sealed gold ampoule, 500°C (32000 psi autogenous pressure), 24 h;cooling to 250°C at 3°C/h, quenching to room temp.;	85%

...Expand

: 1345-25-1
iron(II) oxide

: 765207-04-3
iron(III) phosphate

: (x)H2O*(x)H3O4P

: calcium hydroxide

: Ca(2+)*4Fe(3+)*Fe(2+)*5PO4(3-)*OH(1-)*H2O=CaFe5(PO4)5(OH)*H2O

Conditions

Conditions	Yield
In further solvent(s) High Pressure; heating in autoclave, 400°C, 2.5 d; cooling to room temp. within 8h; detn. by X-ray powder diffraction;	84%

...Expand

: 1345-25-1
iron(II) oxide

: 1118-71-4
2,2,6,6-tetramethylheptane-3,5-dione

: iron(III) 2,2,6,6-tetramethyl-3,5-heptadionate

Conditions

Conditions	Yield
With O2 In further solvent(s) dione as solvent, reflux for 24 h under O2; cooling to room temp., evapn. in vac., extn. with acetone, evapn. at room temp. in air or in vac., sublimation, recrystn. from EtOH, elem. anal.;	60%

: 1345-25-1
iron(II) oxide

: C22H20N5(1+)*Cl(1-)

: C44H36FeN10(2+)*2Cl(1-)

Conditions

Conditions	Yield
In dimethyl sulfoxide at 110℃; under 7500.75 Torr; for 24h; Inert atmosphere;	38%

: 1345-25-1
iron(II) oxide

: 16752-60-6
phosphorus pentoxide

: rubidium chloride

: 7647-14-5
sodium chloride

: Rb(1+)*3Na(1+)*7Fe(2+)*6PO4(3-) = RbNa3Fe7(PO4)6

Conditions

Conditions	Yield
In melt byproducts: (RbCl)Na2Fe3(P2O7)2, NaFe3.67(PO4)3; FeO and P4O10 ground in RbCl/NaCl flux and placed in carbon-coated fused-silica ampoule; sealed under vac.; heated to 700°C and held at this temp. for 4 d; slowly cooled to 450°C and finally cooled to room temp.;	20%

...Expand

: 1345-25-1
iron(II) oxide

: 6000-44-8
sodium glycinate

: 20150-34-9
ferrous glycinate

Conditions

Conditions	Yield
With citric acid In water at 55 - 60℃; for 1h;

: 1345-25-1
iron(II) oxide

: 1633-05-2
strontium(II) carbonate

: 1304-76-3
bismuth(III) oxide

: Bi10Sr15Fe10O46

Conditions

Conditions	Yield
In neat (no solvent) alumina crucible, heating (1250°C), cooling (800°C, 105 h), annealing (765°C, 0.2% O2 or 60 atm O2), slow cooling (from 500to 350°C), holding (350 degree.C, 2 wk);

...Expand

: 1345-25-1
iron(II) oxide

: iron(III) oxide

: indium(III) oxide

: zinc(II) oxide

: InFeO3(ZnO)(FeO)

Conditions

Conditions	Yield
heating (sealed Pt tube, 1200°C, 1 d), rapid cooling in air;

...Expand

: 1345-25-1
iron(II) oxide

: iron(III) oxide

: barium cyanide

A: 14038-43-8
Prussian blue

B: barium(II) oxide

Conditions

Conditions	Yield
glowing;

...Expand

: 1345-25-1
iron(II) oxide

: iron(III) oxide

: 7439-89-6
iron

Conditions

Conditions	Yield
In neat (no solvent) Electrolysis; warming mixture of FeO and Fe2O3 with direct current (needed for electrolysis) in chamotte tube, pptn. of Fe occurs at 1700°C on cathode, current efficiency depends on temperature, but is very low in common;;
In melt Electrolysis; electrolyzing melt of FeO, Fe2O3 and SiO2 at 1300°C with high current density and terminal voltage 1.7 to 2 V leads to pptn. of iron sponge;;

Ferrous oxide Chemical Properties

Product Name: Iron(II) oxide (CAS NO.1345-25-1)

Molecular Formula: FeO
Molecular Weight: 71.84g/mol
Mol File: 1345-25-1.mol
EINECS: 215-721-8
Melting Point: 1369°C
Sensitive: Air Sensitive
Stability: Stable. Incompatible with strong oxidizing agents. Highly flammable.
H-Bond Donor: 0
H-Bond Acceptor: 1
Structure Descriptors of Iron(II) oxide (CAS NO.1345-25-1):
IUPAC Name: oxoiron
Canonical SMILES: O=[Fe]
InChI: InChI=1S/Fe.O
InChIKey: UQSXHKLRYXJYBZ-UHFFFAOYSA-N
Product Categories: Inorganic Chemicals; Inorganics; Metal and Ceramic Science; Oxides

Ferrous oxide Uses

Iron(II) oxide (CAS NO.1345-25-1) is used as a pigment. It is FDA-approved for use in cosmetics and it is used in some tattoo inks.

Ferrous oxide Production

Iron(II) oxide can be prepared by heating Ferrous oxide in vacuo:
FeC₂O₄ → FeO + CO + CO₂
The black powder can be made less reactive by heating. The heated sample has a more physical change is quenched to prevent disproportionation.Stoichiometric FeO can be prepared by heating Fe_0.95O with metallic iron at 770 °C and 36 kbar.

Ferrous oxide Consensus Reports

Related compounds: Iron(III) oxide, Iron(II,III) oxide

Ferrous oxide Safety Profile

Ignites when heated in air above 200°C. The powdered oxide may be pyrophoric. Incandescent or hazardous reaction with nitric acid (with powdered oxide), hydrogen peroxide, sulfur dioxide + heat. See also IRON and IRON COMPOUNDS.
Safety Information of Iron(II) oxide (CAS NO.1345-25-1):
Hazard Codes: F
Risk Statements: 11
R11:Highly flammable.
Safety Statements: 16-33-7/9
S16:Keep away from sources of ignition.
S33:Take precautionary measures against static discharges.
S7:Keep container tightly closed.
S9:Keep container in a well-ventilated place.
RIDADR: UN 3178 4.1/PG 2

Ferrous oxide Standards and Recommendations

DFG MAK: 1.5 mg/m³ calculated as fine dust.

Ferrous oxide Specification

Iron(II) oxide , its CAS NO. is 1345-25-1, the synonyms are Iron monooxide ; Natural wuestite ; Iron(II) oxide .

Product Name

IRON (II) OXIDE

Synthetic route

Ferrous oxide Chemical Properties

Ferrous oxide Uses

Ferrous oxide Production

Ferrous oxide Consensus Reports

Ferrous oxide Safety Profile

Ferrous oxide Standards and Recommendations

Ferrous oxide Specification

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