thorium (IV) oxide (Thorium Dioxide) (ThO2) hmoov Purity Min.99%
Thorium Dioxide
| IUPACName | Thorium dioxide, Thorium (IV) oxide |
| Lwm lub npe | Thoria, Thorium anhydride |
| Cas Nr. | 1314-20-1 |
| Cov mis tshuaj | ThO2 |
| Qhov hnyav ntawm cov molar | 264.037g/mol |
| Qhov tsos | dawb khov kho |
| Tsw tsw phem | tsis muaj ntxhiab |
| Qhov Ceev | 10.0g/cm3 |
| Qhov kub yaj | 3,350°C (6,060°F; 3,620K) |
| Kub taw tes | 4,400°C (7,950°F; 4,670K) |
| Kev yaj hauv dej | tsis yaj |
| Kev yaj tau | insoluble nyob rau hauv alkali me ntsis soluble nyob rau hauv acid |
| Kev cuam tshuam ntawm kev sib nqus (χ) | −16.0·10−6cm3/mol |
| Cov ntsuas kev cuam tshuam (nD) | 2.200 (thorianite) |
Cov Lus Qhia Txog Kev Lag Luam rau Thorium (TV) Oxide
Qhov Huv Huv Min.99.9%, Qhov Dawb Min.65, Qhov Loj Me Me (D50) 20 ~ 9μm
Thorium Dioxide (ThO2) siv rau dab tsi?
Thorium dioxide (thoria) tau siv rau hauv cov khoom siv ceramics kub heev, cov roj mantles, roj nuclear, kev txau nplaim taws, crucibles, iav optical glass uas tsis yog silicia, catalysis, filaments hauv cov teeb incandescent, cathodes hauv cov raj electron thiab arc-melting electrodes.Cov roj nuclearThorium dioxide (thoria) siv tau rau hauv cov chaw tsim hluav taws xob nuclear ua cov roj av ceramic, feem ntau muaj nyob rau hauv cov pas nrig roj nuclear uas muaj zirconium alloys. Thorium tsis yog fissile (tab sis yog "fertile", yug me nyuam fissile uranium-233 nyob rau hauv neutron bombardment);Cov hlau sib xyawThorium dioxide yog siv los ua tus stabilizer hauv tungsten electrodes hauv TIG welding, electron tubes, thiab aircraft gas turbine engines.Kev ua kom lub cev muaj zogThorium dioxide yuav luag tsis muaj nqis li ib qho catalyst rau kev lag luam, tab sis cov ntawv thov zoo li no tau raug tshawb nrhiav zoo. Nws yog ib qho catalyst hauv Ruzicka lub nplhaib loj synthesis.Cov neeg sawv cev radiocontrastThorium dioxide yog cov khoom xyaw tseem ceeb hauv Thorotrast, ib qho tshuaj radiocontrast uas ib zaug siv rau kev kuaj mob cerebral angiography, txawm li cas los xij, nws ua rau muaj mob qog noj ntshav tsawg tsawg (hepatic angiosarcoma) ntau xyoo tom qab kev siv tshuaj.Kev tsim khoom iavThaum ntxiv rau hauv iav, thorium dioxide pab ua kom nws cov refractive index nce thiab txo qhov dispersion. Cov iav zoo li no pom tau tias siv tau rau hauv cov lens zoo rau cov koob yees duab thiab cov cuab yeej siv hauv kev tshawb fawb.
