manganese (III) ooksaid

manganese (iii) ooksaid ennathu mn2o3 enna soothravaakyamulla oru raasa samyukthamaanu. ithu prakrithiyil dhaathuvaaya bixbite (aduthide bixbite-(mn) aayi maari) aayi kaanapedunnu, ithu ferritukaludeyum thermistarukaludeyum ulppaadanathil upayogikkunnu.
thayyaareduppum rasathanthravum.
800 digri selshyasil thaazheyulla vaayuvil emm. enn. oo. 2 choodaakkunnathu α-emm. enn. 2. oo. 3 (uyarnna thaapanila emm. enn. 3. oo. 4) uthpaadippikkunnu. ooksideshanum thudarnnu manganese nirjjaleekaranavum (ii) hydroxide ulppaadippikkaam. naano-kristalin emm. enn. 2 oo. 3-nte niravadhi thayyaareduppukal report cheyyappettittund, udaaharanathinu, miinii lavanangalude ookseekaranam allengil emm. enn. oo. 2 kuraykkunnathu ulppedunna synthesis.
oru kshaarakoshatthile redox prathikaranathiloodeyaanu manganese (iii) ooksaid roopappedunnatha
manganese (iii) ooksaid emm. enn. 2oo. 3 neey mnoo manganese (iii) oxyhydroxidemaayi thettidharikkaruthu. mn2o3 nuu vipareethamaayi, ekadesham 300 digri selshyasil vighadichu mno2 roopappedunna oru samyukthamaanu mnoo.
ghadana.
mattu pala parivartthana loha ooksaidukalil ninnum vyathyasthamayi mn2o3 ennathu korandam (al2o3) ghadana sweekarikkunnilla. keyro 3 gadanayilulla uyarnna mardha roopavum report cheyyappettittunde α-mn2o3, γ-mn2o3 ennee rund roopangal saadhaaranayaayi amgeekarikkappettittundu.
α-mn2o3-nuu cubic bixbite gadanayundu, ithu sii-type apoorva erthu seskwoxidinte (piyarsan chihnam chihnam, space group iaa, #206) udaaharanamaanu. bixbite gadanayude saannidhyam sthiratha kaivarichathaayi kandethiyittundu
cheria alavil fe3 +, shudhamaaya mn2o3-nuu oru orthorompobic gadanayundu (piyarsan chihnam opi 24, space group pbca, #61). α-mn2o3 80k-ll antifero magnetic parivarthanatthinu vidheyamaakunnu. 
γ-mn2o3 nuu mn3o4-nte spinal gadanayumaayi bandhapetta oru gadanayundu, avide ooksaid ionukal cubic closs paaykk cheythirikkunnu. ithu γ-fe2o3 umm fe3o4 umm thammilulla bandhathinu samaanamaan. γ-mn2o3 39 k enna neel thapanilayulla ferrimagnetic aanu.
ε-mn2o3 oru rombohedral ilmenite ghadana (angane cheiyunna aadyathe bainari samyuktham) edukkunnu, athil manganese katteshanukal 2 +, 4 + ennee ooksideshan avasthakalaayi thulyamaayi vibhajikkappedunnu. 210 keey enna neel thapanilayulla ε-mn2o3 antifero magnetic aanu.

