Qhov txawv ntawm Fe2O3 thiab Fe3O4

2024 Tus sau: Alex Aldridge | [email protected]. Kawg hloov kho: 2023-12-17 13:40

Fe₂O₃vs Fe₃O₄

Qhov txawv ntawm Fe₂O₃₃O ₄ tuaj yeem tham txog lawv cov tshuaj nrog rau lub cev thiab kev siv. Ob qho tib si ntawm cov zaub mov no yog qhov tshwm sim ntawm cov hlau oxides. Tab sis, feem ntau ntawm lawv cov khoom thiab kev siv yog txawv rau ib leeg. Lub ntuj daim ntawv ntawm Fe₂O₃ yog hu ua hematite, thiab ntawm Fe₃O 4 _{yog hu ua magnetite. Lawv ob leeg yog cov yeeb yuj oxides nrog cov xim sib txawv, uas yog siv los ua pigments thiab muaj ferromagnetic zog.}

Fe₂O_3?

Cov ntxhia daim ntawv ntawm Fe₂O_{3 yog hu ua hematite lossis haematite. Lub npe IUPAC ntawm qhov sib xyaw no yog hlau (III) oxide, tseem hu ua ferric oxide. Nws yog ib qho inorganic compound uas muaj ntau theem ntawm cov qauv siv lead ua. Nws yog xim liab tsaus.}

Fe₂O₃ yog qhov tseem ceeb ntawm hlau hauv kev lag luam hlau thiab hlau, thiab nws yog siv los tsim qee cov alloys. Cov hmoov zoo ntawm Fe₂O₃ yog tus neeg sawv cev polishing rau cov hniav nyiaj hniav kub hlau thiab lo ntsiab muag. Fe₂O_{3, thaum siv los ua xim, muaj ntau lub npe. Cov npe no yog "Pigment Brown 6," "Pigment Brown 7," thiab "Pigment Red 101." Lawv siv hauv kev kho mob thiab hauv kev lag luam pleev xim. Piv txwv li, "Pigment Brown 6" thiab "Pigment Red 101" yog FDA (Food and Drug Administration) pom zoo xim thiab siv los ua cov tshuaj pleev ib ce. Kev sib xyaw ntawm cov hlau oxides thiab titanium oxide yog siv los ua cov xim hauv cov hniav sib xyaw.}

Fe₃O_4?

Fe₃O₄ muaj Fe²⁺ thiab Fe ³⁺ ions. Yog li ntawd, nws yog hu ua Iron (II) (III) oxide. Lub npe IUPAC ntawm Fe₃O₄ yog hlau (II) hlau (III) oxide. Nws tseem hu ua ferrous-ferric oxide. Nws tuaj yeem tsim los ntawm FeO thiab Fe₂O_{3, Lub ntuj daim ntawv ntawm cov pob zeb no yog magnetite. Nws muaj cov khoom sib nqus thiab nws yog cov khoom siv hlau nplaum tshaj plaws nyob hauv lub ntiaj teb. Nws tshwm sim nyob rau hauv yuav luag tag nrho cov igneous thiab metamorphic pob zeb raws li cov nplej me me. Nws yog xim dub lossis xim av-dub nrog cov xim hlau.}

Muaj ntau yam kev lag luam siv ntawm Fe₃O₄ Nws yog ib qho catalyst hauv kev lag luam synthesis ntawm ammonia siv "Haber txheej txheem." Nws kuj tseem siv los ua cov xim dub hu ua C. I pigment dub 11 (C. Ib., 77499). Nano-particles ntawm Fe₃O₄ yog siv rau hauv cov txheej txheem MRI scanning ua tus neeg sawv cev sib txawv. Daim ntawv hmoov ntawm Fe₃O_{4 yog ib qho zoo sorbent; Nws tshem tawm arsenic (III) thiab arsenic (V) ntawm dej.}

Qhov txawv ntawm Fe₂O₃ thiab Fe₃O 4?

qauv:

• The Fe₂O₃ muaj ntau yam siv lead ua xws li alpha theem, gamma theem, thiab lwm theem. Alpha-Fe₂O₃ muaj cov qauv rhombohedral, gamma- Fe₂O _{3 muaj cubic qauv, thiab beta theem muaj cubic lub cev-centered qauv.}

• Cov qauv siv lead ua ntawm Fe₃O_{4 yog "cubic inverse spinel qauv."}

Oxidation xeev ntawm hlau (Fe):

• Hauv Fe₂O_{3, lub xeev oxidation ntawm hlau yog (+III).}

• Fe₃O_{4 muaj ob qho tib si (+II) thiab (+III) oxidation xeev.}

Colour:

• Fe₂O_{3 yog xim liab. Nws zoo nkaus li cov xim liab-xim av.}

• Fe₃O_{4 muaj xim xim av-dub nrog cov xim hlau.}

Kev coj hluav taws xob:

• Cov hluav taws xob conductivity ntawm Fe₃O₄ yog qhov siab dua (106) dua Fe ₂ O₃. Yog vim li cas rau cov cuab yeej no yog vim muaj peev xwm pauv electrons ntawm Fe²⁺ thiab Fe³⁺ chaw hauv Fe₃ O_4.

As ib Pigment:

• Fe₂O_{3 ua ntau xim raws li xim xim; "Pigment Brown 6," "Pigment Brown 7," thiab "Pigment Red 101."}

• Fe₃O_{4 yog siv los ua cov xim dub xim hu ua C. I pigment dub 11.}