Manganese Dioxide
Manganese dioxide, Manganese (IV) oxide
| Cov lus txhais | Pyrolusite, hyperoxide ntawm manganese, dub oxide ntawm manganese, manganic oxide |
| Cas Nr. | 13113-13-9 |
| Cov Qauv Tshuaj | MnO2 |
| Molar Mass | 86.9368 g/mol |
| Qhov tsos | Xim av-dub khov kho |
| Qhov Ceev | 5.026 g/cm3 |
| Melting Point | 535 °C (995 °F; 808 K) ( lwj tag) |
| Kev yaj hauv dej | Tsis yaj |
| Kev Nyuaj Siab Sib Nqus (χ) | +2280.0·10−6 cm3/mol |
Cov Lus Qhia Dav Dav rau Manganese Dioxide
| MnO2 | Fe | SiO2 | S | P | Cov dej noo | Qhov Loj ntawm Cov Khoom Me Me (Mesh) | Daim Ntawv Thov Pom Zoo |
| ≥30% | ≤20% | ≤25% | ≤0.1% | ≤0.1% | ≤7% | 100-400 | Cib, Pobzeb |
| ≥40% | ≤15% | ≤20% | ≤0.1% | ≤0.1% | ≤7% | 100-400 | |
| ≥50% | ≤10% | ≤18% | ≤0.1% | ≤0.1% | ≤7% | 100-400 | Kev sib xyaw ua ke ntawm cov hlau tsis yog ferrous, desulfurization thiab denitrification, manganese sulfate |
| ≥55% | ≤12% | ≤15% | ≤0.1% | ≤0.1% | ≤7% | 100-400 | |
| ≥60% | ≤8% | ≤13% | ≤0.1% | ≤0.1% | ≤5% | 100-400 | |
| ≥65% | ≤8% | ≤12% | ≤0.1% | ≤0.1% | ≤5% | 100-400 | Iav, Ceramics, Cement |
| ≥70% | ≤5% | ≤10% | ≤0.1% | ≤0.1% | ≤4% | 100-400 | |
| ≥75% | ≤5% | ≤10% | ≤0.1% | ≤0.1% | ≤4% | 100-400 | |
| ≥80% | ≤3% | ≤8% | ≤0.1% | ≤0.1% | ≤3% | 100-400 | |
| ≥85% | ≤2% | ≤8% | ≤0.1% | ≤0.1% | ≤3% | 100-40 |
Cov Lus Qhia Txog Kev Lag Luam rau Electrolytic Manganese Dioxide
| Cov khoom | Chav tsev | Tshuaj Oxidation & Catalytic Qib | P Hom Zinc Manganese Qib | Qib roj teeb Alkaline Zinc-Manganese Dioxide uas tsis muaj Mercury | Lithium Manganese Acid Qib | |
| HEMD | TEMD | |||||
| Manganese Dioxide (MnO2) | % | 90.93 | 91.22 | 91.2 | ≥92 | ≥93 |
| Dej noo (H2O) | % | 3.2 | 2.17 | 1.7 | ≤0.5 | ≤0.5 |
| Hlau (Fe) | ppm | 48. 2 | 65 | 48.5 | ≤100 | ≤100 |
| Tooj liab (Cu) | ppm | 0.5 | 0.5 | 0.5 | ≤10 | ≤10 |
| Cov hmoov txhuas (Pb) | ppm | 0.5 | 0.5 | 0.5 | ≤10 | ≤10 |
| Nickel (Ni) | ppm | 1.4 | 2.0 | 1.41 | ≤10 | ≤10 |
| Cobalt (Co) | ppm | 1.2 | 2.0 | 1.2 | ≤10 | ≤10 |
| Molybdenum (Mo) | ppm | 0.2 | - | 0.2 | - | - |
| Mercury (Hg) | ppm | 5 | 4.7 | 5 | - | - |
| Sodium (Na) | ppm | - | - | - | - | ≤300 |
| Potassium (K) | ppm | - | - | - | - | ≤300 |
| Cov kua qaub hydrochloric uas tsis yaj tau | % | 0.5 | 0.01 | 0.01 | - | - |
| Sulfate | % | 1.22 | 1.2 | 1.22 | ≤1.4 | ≤1.4 |
| Tus nqi PH (txiav txim siab los ntawm txoj kev dej distilled) | - | 6.55 | 6.5 | 6.65 | 4~7 | 4~7 |
| Thaj Chaw Tshwj Xeeb | m2/g | 28 | - | 28 | - | - |
| Qhov Ceev ntawm Kov | g/l | - | - | - | ≥2.0 | ≥2.0 |
| Qhov Loj ntawm Cov Khoom Me Me | % | 99.5 (-400mesh) | 99.9 (-100mesh) | 99.9 (-100mesh) | 90≥ (-325mesh) | 90≥ (-325mesh) |
| Qhov Loj ntawm Cov Khoom Me Me | % | 94.6 (-600mesh) | 92.0 (-200mesh) | 92.0 (-200mesh) | Raws li Qhov Yuav Tsum Tau Ua | |
Cov Lus Qhia Txog Kev Lag Luam rau Manganese Dioxide Tshwj Xeeb
| Pawg Khoom | MnO2 | Cov yam ntxwv ntawm cov khoom | ||||
| Hom C Manganese Dioxide Ua Haujlwm | ≥75% | Nws muaj cov txiaj ntsig zoo xws li γ-hom siv lead ua qauv, thaj chaw loj tshwj xeeb, kev ua haujlwm nqus dej zoo, thiab kev ua haujlwm tso tawm; | ||||
| Hom P Manganese Dioxide Ua Haujlwm | ≥82% | |||||
| Ultrafine Electrolytic Manganese Dioxide | ≥91.0% | Cov khoom muaj qhov loj me me (tswj hwm tus nqi pib ntawm cov khoom hauv 5μm), qhov ntau thiab tsawg ntawm cov khoom me me, γ-hom siv lead ua, muaj tshuaj lom neeg huv siab, ruaj khov, thiab muaj kev sib kis zoo hauv hmoov (lub zog sib kis yog siab dua li cov khoom ib txwm muaj ntau dua 20%), thiab nws yog siv rau hauv cov xim nrog cov xim siab thiab lwm yam khoom zoo dua; | ||||
| Cov Manganese Dioxide Uas Muaj Peev Xwm Siab | 96% -99% | Tom qab ntau xyoo ntawm kev ua haujlwm hnyav, UrbanMines tau ua tiav tsim cov manganese dioxide uas muaj cov yam ntxwv ntawm kev oxidation muaj zog thiab kev tso tawm muaj zog. Tsis tas li ntawd, tus nqi muaj qhov zoo dua li electrolytic manganese dioxide; | ||||
| γ Electrolytic Manganese Dioxide | Raws li Qhov Yuav Tsum Tau Ua | Tus neeg sawv cev vulcanizing rau polysulfide roj hmab, ntau yam kev ua haujlwm CMR, tsim nyog rau halogen, roj hmab tiv taus huab cua, kev ua haujlwm siab, tiv taus cua sov, thiab ruaj khov; | ||||
Manganese Dioxide siv rau dab tsi?
* Manganese Dioxide tshwm sim ntuj tsim ua cov pob zeb pyrolusite, uas yog qhov chaw ntawm manganese thiab tag nrho nws cov sib xyaw; Siv los ua manganese hlau ua tus oxidizer.
*MnO2 feem ntau yog siv ua ib feem ntawm cov roj teeb qhuav: cov roj teeb alkaline thiab cov roj teeb hu ua Leclanché cell, lossis cov roj teeb zinc-carbon. Manganese Dioxide tau siv ua cov khoom siv roj teeb pheej yig thiab muaj ntau. Thaum xub thawj, MnO2 uas tshwm sim hauv ntuj tau siv ua raws li cov tshuaj manganese dioxide uas tau tsim los ntawm tshuaj lom neeg uas txhim kho kev ua haujlwm ntawm cov roj teeb Leclanché. Tom qab ntawd, cov manganese dioxide (EMD) uas tau npaj los ntawm electrochemically zoo dua tau siv los txhim kho lub peev xwm ntawm lub roj teeb thiab lub peev xwm ntawm tus nqi.
*Ntau yam kev siv hauv kev lag luam suav nrog kev siv MnO2 hauv cov khoom siv av nplaum thiab cov iav ua cov xim tsis muaj zog. Siv rau hauv kev ua iav kom tshem tawm cov xim ntsuab uas tshwm sim los ntawm cov hlau tsis huv. Rau kev ua iav amethyst, tshem cov xim iav, thiab pleev xim rau cov khoom siv porcelain, faience, thiab majolica;
* Cov dej nag ntawm MnO2 yog siv rau hauv electrotechnics, pigments, browning phom barrels, ua drier rau xim thiab varnishes, thiab rau kev luam ntawv thiab dyeing textiles;
*MnO2 kuj siv ua xim thiab ua cov khoom ua ntej rau lwm cov tshuaj manganese, xws li KMnO4. Nws yog siv ua cov tshuaj reagent hauv kev tsim cov organic, piv txwv li, rau kev oxidation ntawm cov cawv allylic.
*MnO2 kuj tseem siv rau hauv cov ntawv thov kho dej.
