Aluminium Sulfate
Taw qhia ntawm txhuas sulfate
Aluminium sulfate yog ntsev nrog cov qauv al2 (so4) 3. Nws yog soluble nyob rau hauv dej thiab yog tsuas yog siv los ua coagulating tus neeg sawv cev hauv kev ua kom huv ntawm cov dej haus thiab dej kom huv, thiab tseem nyob hauv cov ntawv tsim khoom. Peb cov hmoov txhuas txhuas muaj hmoov granules, flakes, thiab ntsiav tshuaj, peb kuj tuaj yeem muab qib tsis muaj kev lag luam, thiab qib qis.
Aluminium sulfate muaj xws li dawb, xws li muaju muaju, granules, lossis hmoov. Nyob rau hauv xwm, nws muaj raws li cov ntxhia alunogenite. Aluminium sulfate qee zaum hu ua Alum lossis Papermaker's Alum.
| Tshuaj Cov Qauv | AL2 (so4) 3 |
| Tus hniav loj | 342.15 g / mol (anhydrous) 666.44 G / Mol (Octadecahydate) |
| Kev tshwm sim | Dawb crystalline khoom Hygroscopic |
| Ceev | 2.672 g / cm3 (anhydrous) 1.62 g / cm3 (Octadecahydate) |
| Melting taw tes | 770 ° C (1,420 ° F; 1,040 k) (decomposes, anhydrous) 86.5 ° C (Octadecahydrate) |
| Solubility hauv dej | 31.2 G / 100 ML (0 ° C) 36.4 G / 100 ml (20 ° C) 89.0 G / 100 ml (100 ml (100 ° C) |
| So | soluble me ntsis hauv dej cawv, dilute ntxhia ntxhia acids |
| Acidity (PKa) | 3.3-3.6 |
| Sib Nqus Tau Zoo (χ) | -93.0-6 CM3 / MOL |
| Cov indexial index (nD) | 1.47 [1] |
| Cov ntaub ntawv thermodynamic | THEEM Cwj Pwm: Khoom-Ua kua-roj |
| Std enshapy ntawm tsim | -3440 kj / mol |
Pob:Lined nrog hnab yas, sab nraud woven hnab. LUJ CEEB TOOM: 50 kg hnab
Tsev neeg siv
Qee qhov kev siv ntau tshaj plaws ntawm txhuas sulfate muaj nyob hauv tsev. Qhov sib xyaw ua ke yog feem ntau pom nyob rau hauv ci dej qab zib, txawm hais tias muaj qee qhov kev sib cav los seb nws tsim nyog ntxiv txhuas rau cov khoom noj. Qee cov antiperspanants muaj aluminium sulfate vim tias nws cov yam ntxwv ua rau cov tshuaj tua kabmob, txawm hais tias yog xyoo 2005 fda tsis paub txog qhov ntub dej reducer. Thaum kawg, qhov sib xyaw yog lub tsev nplaum astringent hauv cov xaum xaum, uas tsim los nres cov kev txiav me me los ntshav.
Kev ua teb
Lwm yam nthuav tawm kev siv ntawm txhuas sulfate nyob ib ncig ntawm lub tsev nyob hauv kev ua teb. Vim tias txhuas sulfate muaj cov kua qaub tsis tshua muaj acidic, nws qee zaum ntxiv rau cov av alkaline ua kom sib npaug ntawm cov nroj tsuag. Thaum txhuas sulfate tuaj rau hauv kev sib cuag nrog dej, nws tsim txhuas hydroxide thiab ib tug diluted sulfuric acid acid, uas cov alters cov av acidity. Cov neeg ua vaj zaub uas cog cov cuab yeej no siv cov paj xim (xiav lossis liab dawb) ntawm cov tshuab hluav taws xob no yog qhov rhiab heev rau cov av Ph.
Aluminium Sulfatewater Kho
Ib qho tseem ceeb tshaj plaws ntawm txhuas sulfate yog nyob rau hauv kev kho dej thiab ua kom huv. Thaum ntxiv rau dej, nws ua rau microscocic impurities rau clump ua ke rau hauv loj thiab loj dua. Cov koog ntoo ntawm impurities yuav tom qab khom rau hauv qab ntawm lub thawv lossis tsawg kawg tau loj txaus kom lim lawv tawm ntawm cov dej. Qhov no ua rau cov dej muaj kev nyab xeeb haus. Ntawm tib lub ntsiab cai qub, txhuas sulfate kuj yog qee zaum siv hauv pas dej da dej kom txo qis ntawm cov dej.
Ziab ntaub
Lwm ib ntawm ntau cov kev siv ntawm txhuas sulfate yog nyob rau hauv zas thiab luam ntawv rau ntawm daim ntaub. Thaum yaj nyob rau hauv ntau npaum li cas ntawm cov dej uas muaj qhov nruab nrab lossis me ntsis alkaline pH, cov compound ua rau gooey tshuaj, txhuas hydroxide. Lub Gooley cov tshuaj pab DYES lo rau daim ntaub los ntawm kev ua kom zas dej hauv insoluble. Lub luag haujlwm ntawm txhuas sulfate, tom qab ntawd, yog li zas xim "txhim kho nrog cov xim molecular ntawm cov xim av thiab cov ntaub kom cov xim tsis txhob khiav tawm thaum cov ntaub ntub dej.
Ntawv Making
Yav dhau los, txhuas sulfate tau siv hauv kev ua ntawv, txawm hais tias cov khoom siv hluavtaws tau hloov ntau dua. Aluminium sulfate tau pab rau qhov loj ntawm daim ntawv. Hauv cov txheej txheem no, txhuas sulfate tau koom ua ke nrog Rosin xab npum kom hloov lub nqus ntawm daim ntawv. Qhov no hloov cov ink-nqus cov khoom ntawm daim ntawv. Siv txhuas sulfate txhais tau tias daim ntawv tau ua nyob rau hauv acidic tej yam kev mob. Kev siv hluavtaws sizing cov neeg sawv cev txhais tau tias cov ntawv dawb muaj zog tuaj yeem tsim tawm. Cov ntawv acid-dawb tsis tawg ua kom nrawm li cov ntawv me me nrog cov kua qaub.
