sodium metasilicate anhydrous uye Sodium metasilicate pentahydrate

Yavaibvisa metasilicate pentahydrate

Pakati pemhando dze sodium metasilicate, inonyanya kushandiswa uye yakajairwa ndeye sodium metasilicate pentahydrate. Iyo molecular formula ye sodium metasilicate pentahydrate crystal inowanzo nyorwa se na25io3 ・ 5H20, inova tetrahydrate ye sodium dihydrosilicate ine ma cations maviri, ine solubility ye 50g/100g mvura (20 ℃) ​​uye nzvimbo yekunyungudika ye 72 ℃. Sodium metasilicate pentahydrate ine hunhu huzhinji hwesodium silicate uye sodium metasilicate, uye ine imwe inosunga simba recalcium nemagnesium ion, kunyanya kusungirira kugona kwema magnesium ion kunodarika 260 mg mgco2/g (35 ℃ min). Panyaya yekugadzira maitiro, sodium metasilicate pentahydrate inogona kupfupikiswa mumhando nhatu: yekutanga, iyo "inoenderera granulation nzira",

Sodium metasilicate mhinduro inopfuudzwa kuburikidza neiyo granulation crystallization mudziyo kuti uende zvakananga uye unoramba uchigadzira zvidimbu zvehukuru hunodiwa. Nhamba yehutano inosangana nezvinodiwa zvehg / t2568-94 standard. Kuonekwa kwechigadzirwa ndeye spherical particles, ine kuchena kwepamusoro uye yakanaka fluidity. Icho chigadzirwa chepamusoro-soro. Iyi nzira yakakodzera kugadzirwa kwakakura, asi inonetsa kugona nekuda kwehunyanzvi hwayo hwakasimba. Chekutanga, "crystallization dehydration method" uye "crystallization crushing method", "crystallization dehydration method", inozivikanwawo sekuti mai doro circulation method, ndeyekuwedzera sodium metasilicate solution kune mhodzi yekristaro kana doro raamai rekutonhodza uye crystallization, uye ipapo dynamically yakaoma. uye skrini mushure me centrifugal dehydration kuti uwane hupfu uye granular zvigadzirwa. Iyi nzira yakaoma pakugadzirwa kukuru, asi chitarisiko chechigadzirwa uye fluidity yakanaka, uye zviratidzo zvemuviri nemakemikari zvinogonawo kusangana nezvinodiwa zvehg / t2568-94 standard. "Crystallization kupwanya nzira" ndeyekutarisisa iyo sodium metasilicate mhinduro kune inodiwa yekumisikidza, kutungamira mhinduro yekupenya kuita blocky solids nekuwedzera mhodzi dzekristaro uye zvinowedzera, shandura mvura yese yemahara kuita mvura yekristaro, uye kupwanya yakasimba kuita zvigadzirwa zvakapedzwa. Zvakanakira nzira iyi ndezvekuti mari yekudyara idiki, asi kukuvadzwa kwechimiro chekristaro kwakakomba, zvinodiwa zvemamiriro ekunze uye mamiriro ekutonga ane hukasha, kusimba kwevashandi kwakakwira, kuchena kwechigadzirwa kwakadzikira, uye zviri nyore kutora unyoro uye agglomerate, Iwo emuviri nemakemikari indexes kazhinji haagone kusangana nezvinodiwa zvehg/t2568-94 chiyero. Kushandiswa kwezvigadzirwa zvegranular hazvina guruva, izvo zvinogona kuzadzisa zvinodiwa kunze kwenyika: iyo poda uye granular zvigadzirwa zvinogadzirwa nenzira mbiri dzekupedzisira dzinoshandisa guruva rakakura, uye kunze kwenyika kunogumira.

sodium metasilicate Anhydrous 

Anhydrous sodium metasilicate molecular formula Na2SiO3, pH value inenge 12.4, melting point i1089 ℃, density is.0.8-1.2g/cm3, dissolution rate mumvura inokurumidza, uye vitrification haizoitiki. Anhydrous sodium metasilicate ine zvirinani application performance pane hydrated sodium metasilicate mune mamwe minda. Anhydrous sodium metasilicate ine yunifomu zvidimbu, hombe chaiyo nzvimbo uye yakakwirira mafuta absorption kukosha, iyo inobatsira kubviswa kwemavara emafuta. Iyo yakazara alkali uye silicon dioxide zvirimo yeanhydrous sodium metasilicate ndeye ≥ 94%. Inofananidzwa ne hydrated silicon metasilicate, inovandudza kukwanisa kusungirirwa kweCa uye Mg ions, uye inoita basa rinokosha mukusimudzira kupfava kwemvura yakaoma, kugadzirisa uye kudzikamisa pH kukosha, kuvandudza kushanda kweva surfactants, kunatsiridza decontamination, kuparadzira tsvina yakasvibiswa, uye kuchengetedza chimiro chakanaka chehupfu. Anhydrous sodium metasilicate haizokonzerese mvura yekristaro, uye inoratidza kuenderana kwakakosha uye kugadzikana kune organic chlorine, peroxide uye bleaching synergist mune detergent. Iyo yekugezesa yekubatsira maitiro iri nani zvakanyanya kupfuura hydrated silicon metasilicate uye 4A zeolite. Zvichienderana nekugona kwakasimba kweanhydrous sodium metasilicate kune chelate magnesium ions uye 4A zeolite kune chelate calcium ions, izvo zviviri zvine zvakanakira mune anhydrous sodium metasilicate-4a zeolite binary additives, ine yakakwana chelating kugona kwecalcium uye magnesium ion, uye ine yakanakisa. kushanda mu synergistic effect ye surfactants. Vagadziri vehupfu hwekugeza vachawedzera huwandu hwakawanda hweanhydrous sodium metasilicate

Iyo minda yekushandisa yeanhydrous sodium metasilicate uye hydrated sodium metasilicate inopindirana, asi muminda inonzwira kukristaro mvura, anhydrous silicon metasilicate ichasarudzwa pachinzvimbo che hydrated silicon.