Qhov cuam tshuam ntawm qhov kub thiab txias ntawm kev kho cov nyhuv ntawm cov hlau tsis muaj txhuas sulfate dej

Iron free aluminium sulfate yog cov siv lead ua dawb uas yog soluble hauv dej, insoluble hauv cawv, thiab cov tshuaj aqueous yog acidic. Qhov kub ntawm lub cev qhuav dej yog 86.5. Thaum rhuab mus rau 250, cov dej crystalline ploj, thiab thaum rhuab mus rau 300, anhydrous aluminium sulfate pib decompose. Ib tug dawb crystal nrog ib tug pearl luster. Feem ntau yog siv los ua tus neeg sawv cev sizing thiab flocculant rau papermaking, siv rau cov dej haus, dej haus, thiab kev kho dej khib nyiab. Nws cov nyhuv kho dej yog cuam tshuam los ntawm ntau yam. Qhov tsab xov xwm no tsuas yog nkag siab txog qhov kub thiab txias ntawm kev kho dej ntawm cov hlau tsis muaj txhuas sulfate.
Hauv kev kho dej khib nyiab, cov khoom zoo thiab cov khoom ntuj colloidal hauv dej coagulate rau hauv cov floc loj.
Cov concentration ntawm cov hlau tsis muaj txhuas sulfate feem ntau yog 10%, thiab thaum qhov kub thiab txias yog 0 degree, cov tshuaj tiv thaiv hydrolysis tsuas yog 5. Thaum qhov kub thiab txias yog 0 degree, cov tshuaj tiv thaiv hydrolysis tuaj yeem ua tau. nce 2/3 rau 1/2. Soluble nyob rau hauv dej, insoluble nyob rau hauv ntshiab sulfuric acid, tab sis coexisting. Cov laj thawj tseem ceeb yog qhov nthuav dav ntawm kev sib txhuam los ntawm qhov kub thiab txias thiab cov dej viscosity siab, qhov nyuaj ntawm kev daws teeb meem los ntawm hydrolysis cov tshuaj tiv thaiv ntawm cov pa phem tshem tawm thiab txhuas sulfate hauv dej, thiab qhov qeeb qeeb qeeb.
Thaum qhov kub thiab txias qis, qhov sib txawv ntawm cov hlau tsis muaj txhuas sulfate huab cua muaj kuab paug hauv dej yog qhov loj, thiab lub zog quab yuam ntawm cov pa phem nthuav dav, ua rau muaj kev cuam tshuam loj heev. Aluminium chloride nyob rau hauv cov dej uas tsis tshua muaj kub tsub kom cov khoom lag luam ntawm cov dej vim huab cua paug, yog li nws pom zoo kom tsis txhob kub tshaj 5 degree.
Hlau tsis muaj txhuas sulfate yog siv los ua precipitant rau rosin pos hniav, wax lotion thiab lwm yam sizing ntaub ntawv nyob rau hauv daim ntawv kev lag luam, raws li ib tug flocculant nyob rau hauv dej kho, nrog rau ib tug sab hauv tuav tus neeg saib xyuas rau ua npuas ncauj tua hluav taws, raws li ib tug raw khoom rau manufacturing alum. thiab txhuas dawb, nrog rau cov khoom siv raw rau roj av decolorization, deodorant thiab qee yam tshuaj. Nws tseem tuaj yeem tsim cov pob zeb zoo nkauj thiab ammonium alum. Cov khoom uas muaj cov ntsiab lus arsenic tsis tshaj 5mg / kg tuaj yeem siv los ua dej kho flocculants.
Nws tuaj yeem siv rau hauv kev tsim cov ntawv, ntaub, khoom noj khoom haus leavening agents, roj hmab dawb, tawv dawb, thiab lwm yam. Tam sim no, txhua xyoo muaj peev xwm ntawm cov hlau tsis muaj txhuas sulfate hauv Suav teb yog li 1500t, suav rau tsuas yog 0.19/6-0.2 ntawm tag nrho cov khoom ntawm txhuas sulfate.
Hlau dawb aluminium sulfate yog siv los ua daim ntawv sizing tus neeg sawv cev hauv kev lag luam papermaking los txhim kho cov dej tsis kam thiab kev ua haujlwm ntawm cov ntawv. Tom qab tau yaj hauv dej, nws tuaj yeem ua rau cov khoom me me thiab cov gel hauv cov dej kom condense rau hauv cov flocs loj, uas tuaj yeem raug tshem tawm ntawm dej. Yog li ntawd, nws yog siv los ua coagulant rau dej thiab dej khib nyiab. Siv los ua tus neeg saib xyuas purifying rau turbid dej, nrog rau precipitant, fixative, muab tub lim, thiab lwm yam. Siv los ua raw khoom rau anti hws tshuaj pleev ib ce hauv tshuaj pleev ib ce. Hauv kev lag luam tiv thaiv hluav taws, tus neeg sawv cev tua hluav taws yog tsim los ntawm baking soda thiab foaming agent. Analytical reagents, mordants, tanning agents, oil decolorizing agents, wood preservatives.