Alumina yog cov khoom siv tsis zoo uas tsis yog xim hlau, dav siv hauv kev lag luam, kev tsim kho, hluav taws xob, tshuaj thiab lwm yam haujlwm.

Alumina Taw Qhia

Alumina yog cov hmoov dawb lossis dawb dawb nrog cov mis molecular ntawm Al2O3 thiab molecular hnyav ntawm 101.96.Nws yog ib qho kev sib xyaw ua ke ntawm txhuas thiab cov pa oxygen, uas muaj lub siab melting point thiab hardness.Alumina yog ib qho tseem ceeb ntawm kev lag luam raw khoom, uas yog dav siv hauv ceramics, iav, electronics, tshuaj thiab lwm yam lag luam.

Lub cev muaj zog ntawm alumina

Lub cev khoom ntawm alumina feem ntau suav nrog qhov ntom ntom, hardness, thermal stability, optical zog thiab lwm yam.Qhov ceev ntawm alumina yog 3.9-4.0g / cm3, hardness yog Mohs hardness 9, thermal stability siab, thiab melting point yog 2054 ℃.Tsis tas li ntawd, alumina kuj muaj cov khoom siv kho qhov muag zoo thiab yog cov khoom siv kho qhov muag tseem ceeb.

Chemical zog ntawm alumina

Cov khoom siv tshuaj lom neeg ntawm alumina feem ntau suav nrog cov tshuaj tiv thaiv kev ua haujlwm nrog cov tshuaj sib txawv, kua qaub thiab alkali.Alumina reacts nrog acid los tsim txhuas ntsev thiab dej, thiab nrog alkali tsim aluminium hydroxide thiab dej.Nyob rau tib lub sijhawm, alumina kuj muaj cov khoom ntawm acidic oxides, uas tuaj yeem ua rau muaj ntau yam tshuaj.

Txoj kev npaj ntawm alumina

Txoj kev npaj tseem ceeb ntawm alumina yog cov txheej txheem tshuaj, kev siv lub cev thiab lwm yam.Txoj kev tshuaj lom neeg feem ntau yog los ntawm cov tshuaj tiv thaiv nruab nrab ntawm txhuas ntsev thiab hydroxide kom tau txais aluminium hydroxide, thiab tom qab ntawd los ntawm kub kub kub kom tau txais aluminium oxide.Lub cev txoj kev yog tsuas yog los ntawm ore decomposition, distillation, crystallization thiab lwm cov kauj ruam kom tau txais alumina.

Alumina daim ntawv thov teb

Alumina yog siv dav hauv kev lag luam, kev tsim kho, hluav taws xob, tshuaj thiab lwm yam haujlwm.Hauv kev lag luam, alumina yog siv rau hauv kev tsim cov ceramics, iav, coatings thiab lwm yam.Hauv kev tsim kho, alumina yog siv los tsim cov qhov rooj, qhov rais, kab hlau rhuav phab ntsa thiab lwm yam.Hauv cov khoom siv hluav taws xob, alumina yog siv los tsim cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, thiab lwm yam. Nyob rau hauv kev lag luam tshuaj, alumina siv rau hauv kev tsim tshuaj, khoom siv kho mob thiab lwm yam.

Txoj kev loj hlob zeem muag ntawm alumina

Nrog kev txhim kho txuas ntxiv ntawm kev tshawb fawb thiab thev naus laus zis, daim ntawv thov kev lag luam ntawm alumina yog ntau thiab ntau dua.Nyob rau hauv lub neej yav tom ntej, nrog kev loj hlob sai ntawm cov ntaub ntawv tshiab, lub zog tshiab thiab lwm yam kev lag luam, qhov kev thov rau alumina tseem yuav nce ntxiv.Nyob rau tib lub sijhawm, nrog kev txhim kho txuas ntxiv ntawm kev tiv thaiv ib puag ncig, kev tsim cov thev naus laus zis ntawm alumina yuav txuas ntxiv txhim kho, thiab ntau tus phooj ywg ib puag ncig, txuag hluav taws xob thiab txuag hluav taws xob yuav dhau los ua txoj kev loj hlob.

Alumina yog ib qho tseem ceeb inorganic non-metallic khoom, uas muaj ntau yam kev siv thiab tseem ceeb nyiaj txiag nqi.Nyob rau hauv lub neej yav tom ntej, nrog kev loj hlob sai ntawm cov ntaub ntawv tshiab thiab lub zog tshiab thiab lwm yam kev lag luam, qhov kev thov rau alumina tseem yuav nce ntxiv, thaum lub sij hawm tsim cov tshuab alumina tseem yuav txhim kho, thiab ua kom muaj txiaj ntsig zoo rau kev loj hlob ntawm tib neeg.