Dab tsi yog Precipitated Silica ?
Precipitated silica feem ntau hu ua silica, tseem hu ua hydrated silicic acid, lub teeb silica, tshuaj lom neeg qhia feem ntau yog sau ua mSiO2 · nH2O, cov tsos ntawm cov tshuaj dawb heev dispersed amorphous hmoov, tseem txheej txheem rau hauv ntau raws li cov khoom muag. Kev nqus ntawm tshwj xeeb ntawm 2.319 ~ 2.653, qhov nruab nrab ntawm 1750 ℃. Tsis txhob yaj hauv cov dej thiab feem ntau ntawm acids, tom qab cov dej nqus dej yuav ua rau cov khoom pov tseg. Soluble nyob rau hauv caustic dej qab zib thiab hydrofluoric acid. Lwm yam chemicals ruaj khov, kub tsis zoo, tsis txhob hlawv. Muaj ib qho hluav taws xob hluav taws xob hluav taws xob, ntxeem tau, thaj chaw loj, dej haus, tsis muaj kuab lom.
Vim Li Cas Hauv Cov Khoom Noj thiab Cov Tshuaj?
Silica yog ib qhov ua tau los ntawm cov pob zeb uas muaj ntau yam minerals nyob hauv kev ua lag luam rau ntau cov tshuaj vitamin. Feem ntau, silica yog siv los ua tus neeg saib xyuas kev tiv thaiv , uas yuav pab kho lub pob qij txha pob txha thiab pob txha mos, xws li mob caj dab, thaum noj cov zaub mov ua ke. Tsis tas li ntawd, nws tseem yog kev zoo rau kev noj qab haus huv ntawm phab ntsa ntshav txog phab ntsa. Raws li nrog noj ntau ntawm cov vitamins, ntau kom tsawg ntawm silica kuj ua rau muaj kev phiv. Txawm li cas los xij, raws li tus neeg ua hauj lwm tiv thaiv, qhov uas siv cov twj silica tsawg heev. Yog li, lub silica raws li tus neeg ua hauj lwm tiv thaiv tsis ua rau tsis ua mob
Yam Kev Tshawb Fawm Hais
Qhov tseeb hais tias nws pom nyob rau hauv cov nroj tsuag thiab haus dej, pom zoo tias nws muaj kev ruaj ntseg. Tab sis qhov ntxiv, kev tshawb fawb tau pom tias cov silica peb haus tsis muaj nyob rau hauv peb lub cev; theej, nws yog flushed tawm los ntawm ob lub raum.
Txawm tias ntau qhov kev tshawb fawb ntawm silica tau ua rau tsiaj txhu, lawv tau pom tsis muaj qhov sib txuas ntawm silicon dioxide thiab muaj kev pheej hmoo siab mob cancer, hloov kev puas tsuaj, los yog kev tuag. Tsis tas li ntawd, kev tshawb fawb tau pom tias tsis muaj pov thawj tias silicon dioxide tuaj yeem cuam tshuam kev noj qab haus huv, yug me nyuam, los yog lub cev hnyav.
Thaum kawg, Kev Tswj Xyuas Khoom Noj thiab Tshuaj Yeeb (FDA) tau lees paub tias silicon dioxide yog ib qho zaub mov zoo, xws li World Health Organization (WHO) thiab European Food Safety Authority (EFSA).
Raws li cov ntaub ntawv sau ua ke nrog koom haum WHO, tsuas muaj cov teebmeem kev mob tsis zoo rau silicon dioxide los ntawm silicon deficiency. Hauv lwm lo lus, vim tsis muaj silicon dioxide yuav ua teeb meem ntau dua li ntau dhau.
Lub Tshaj Tawm
Silicon dioxide tshwm sim hauv lub ntiaj teb thiab peb lub cev. Nws tsis muaj pov thawj qhia tias nws yog txaus ntshai.