Iron monoxide

The difference in stability between FeO and NiO is not as large as that between iron and copper oxides, and so the preferential oxidation of iron is not so marked in pentlandite. Furthermore, the nickel and iron monoxides form a continuous series of solid solutions, and so a small amount of nickel is always removed into die oxide phase (Table 9.2). 

The method can be illustrated by reference to a classical 1933 study of the defects present in wilstite, iron monoxide. Wustite adopts the sodium chloride (NaCl) structure, and the unit cell should contain 4 Fe and 4 O atoms in the unit cell, with an ideal composition FeOi.o, but in reality the composition is oxygen rich and the unit cell dimensions also vary with composition (Table 1.1). Because there is more oxygen present than iron, the real composition can be obtained by assuming either that there are extra oxygen atoms in the unit cell (interstitial defects) to give a composition FcO 1 +v, or that there are iron vacancies present, to give a formula Fci-JD. It is... 

Also known as black iron oxide iron monoxide. fer as ak.sTd ferrous sulfate inorgchem FeS04-7H20 Blue-green, water-soluble, monoclinic crystals used as a mordant in dyeing wool, in the manufacture of ink, and as a disinfectant. Also known as copperas ferrisulphas green copperas green vitriol iron sulfate. fer as sal,fat ... 

Ferrous Oxide (Iron Monoxide), FeO mw 71.85, blk pdr, sp gt 5-7, mp 1420° insol in w, sol in acids. Can be prepd by heating ferrous oxalate under the hood, while avoiding inhalation of toxic CO evolved. Some ferric oxide is present as impurity. Used as ingredient of some expls... 

Formation of the porphyrin iron monoxide (of the Compound I type) as an active oxidizing species in the P-450 system is supported by the successful monoxidation of P 450 by an oxidizing reagent such as iodosobenzene (see Figure 5) (16). This species then effectively hydroxylates an organic substrate. 

Significant characteristics of the porphyrin iron monoxide are seen in the chemical reactivity. Naphthalene is converted initially to the corresponding arene oxide on treatment with P 450 (19), consistent with a molecular mechanism of oxygen transfer from an iron monoxide to the aromatic nucleus. Retention of stereochemistry in the P-450 catalyzed hydroxylation of d ethylbenzene also supports the molecular mechanism. The unusually large kinetic isotope effect observed for the P-450 oxidation of dideutero 1,3-diphenylpropane, kJkD = 11, demonstrates that C—H cleavage is involved in the rate determining step (20), probably in a very unusual environment, not incompatible with a molecular mechanism. 

OTHER names Ferrous oxide iron monoxide... 

FeO, a black powder, soluble in water, melting at I419 C. Also known as black iron oxide iron monoxide. 

The method can be illustrated by reference to iron monoxide. Iron monoxide, often known by its mineral name of wilstite, has the halite (NaCl) stmcture. In the normal halite structure, there are four metal and four nonmetal atoms in the unit cell, and compounds with this structure have an ideal composition MXi q (see Section 5.3.9 for further... 

CAS 1345-25-1 EINECS/ELINCS 215-721-8 Synonyms Cl 77489 (INCI) Iron monoxide Iron (II) oxide Iron oxides... 

Iron monoxide. See Ferrous oxide Iron naphthenate CAS 1338-14-3... 

Type B Iron monoxide, FeO. This is black, and has a conductivity at room temperature of 2 x 10 m . Electrolytic conduction in the melt is negligible. 

Aubry, J., Berthet, A., Duchene, R., Etienne, H., Evrard, O., Jeannot, F., Gleitzer, C., Offioy, C., Perrot, P., Stabilisation of Iron Monoxide by formation of Solid Solution (in French), Ann. Chim., 5, 299-308 (1970) (Experimental, Phase Diagram, Phase Relations, 45) Kanamaru, F., Miyamoto, H., Mimura, Y, Koizumi, M., Shimada, M., Kume, S., Shin, S., Synthesis of a New Perovskite CaFe03 , Mater. Res. Bull, 5(4), 257-261 (1970) (Crys. Structure, Experimental, Meehan. Prop., Phys. Prop., 6)... 

Steimle TC, Gengler J, Hodges Ph J (2004) The permanent electric dipole moments of iron monoxide. J Chem Phys 121 12303-12307... 

The SCL process based on iron oxide/iron monoxide/iron metal (Fe203/ FeO/Fe) redox pairs can be written as follows ... 

Iron oxide and iron monoxide particles are transferred back to the reduction reactor for the production of CO2 from synthesis gas to close the loop. 

Certain metals are capable of forming several different oxides. A particularly interesting case is that of iron oxides, with three compounds elementary iron, iron monoxide FeO, and tri-iron tetroxide Fc304. Between those components, we can write three reactions represented by an Ellingham line ... 

Hydrogen fluoride Iron monoxide Lithium hydride Imidogen Nitrosyl hydride Hydrodinitrogen(l+)... 

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