Lub Luag Hauj Lwm Ntawm Sodium Pyrophosphate

Kev siv tshuab hluav taws xob yog siv los npaj cov tshuaj electroplating, uas tuaj yeem tsim cov qauv nrog cov hlau. Nws yog siv raws li degreasing tus neeg sawv cev thiab tshuaj dawb tus neeg sawv cev hauv kev lag luam tsiaj spinning. Daim ntawv kev lag luam yog siv rau tshuaj dawb cov ntawv thiab cov khoom cog ntoo. Kev luam ntawv thiab dyeing kev lag luam yog siv los ua tus pabcuam nyob rau hauv luam ntawv thiab dyeing thiab tshuaj dawb. Nws tuaj yeem raug siv los ua tshuaj txhuam hniav ntxiv rau hauv kev lag luam chemical niaj hnub. Nws tuaj yeem tsim cov colloid nrog calcium hydrogen phosphate thiab ua si lub luag haujlwm ruaj khov. Nws kuj tseem siv tau hauv hluavtaws xab npum thiab tshuaj zawv plaub hau. Raws li lub ntsej muag dej hauv dej kho. Raws li xeb tshem tawm hauv machining. Nws yog siv ua dispersant thiab emulsifier hauv kev ua tshuaj lom neeg. Nws kuj tseem siv tau rau hauv tus neeg saib xyuas kev kho dej, roj twj thiab lwm yam, raws li kev ua tsis tau zoo, emulsifier, tsis, chelating tus neeg sawv cev hauv kev lag luam zaub mov.

Sodium pyrophosphate tsis tsuas yog ua haujlwm ntawm kev ua kom cov dej tsis huv, tab sis kuj tuaj yeem zom cov ntsev tsis haum ntawm calcium thiab magnesium. Piv txwv li, cov av tsim los ntawm insoluble calcium xab npum lossis lwm yam tshuaj ntxuav tes hlau yog sib xyaw rau hauv cov khaub ncaws fiber. Nws tuaj yeem ua rau nws rov tawg dua thiab txhim kho kev txiav txim siab lub peev xwm. Tsis tas li ntawd, sodium pyrophosphate muaj qhov ua haujlwm ntawm anti flocculation, uas ua rau cov roj emulsify. Qhov no yog hu ua cov cuab yeej gelling. Nws tseem tuaj yeem ua rau cov kev daws teeb meem txuas ntxiv txo qhov nro thiab cuam tshuam ntawm qhov nro, thiab ua lub luag haujlwm ntawm kev pab ntxuav.

Sodium pyrophosphate, cov qauv tshuaj molecular Na4P2O7 · 10h2o, tus txheeb ze molecular phaus 446.07. Kuj hu ua tetrasodium diphosphate, muaj cov roj ntsha ua kom tsis muaj zog thiab decahydrate. Decahydrate yog xim tsis muaj xim lossis dawb crystalline lossis crystalline hmoov, tshuaj anhydrous yog hmoov dawb, soluble hauv dej, insoluble hauv ethanol thiab lwm cov kuab tshuaj organic. Nws muaj cov peev txheej complexation muaj peev xwm nrog Cu2 {{8}}, Fe +, Mn2 + thiab lwm cov hlau ions. Cov kua aqueous yog ruaj khov hauv qab 70 ℃, thiab hydrolyzes mus rau disodium hydrogen phosphate tom qab npau npau.