Sodium Tripolyphosphate Siv hauv Kev Kho Dej

Sodium tripolyphosphate (STPP) yog ib qho inorganic compound nrog cov tshuaj formula Na5P3O10. Sodium tripolyphosphate siv nyob rau hauv kev kho dej raws li cov dej softening neeg sawv cev thiab raws li ib tug sequesterant.

Kev kho dej yog txheej txheem tseem ceeb rau kev tswj xyuas cov dej huv thiab nyab xeeb rau tib neeg kev noj qab haus huv thiab kev siv hauv kev lag luam. Sodium tripolyphosphate siv hauv kev kho dej yog qhov tseem ceeb hauv kev daws teeb meem ntsig txog dej tawv thiab scaling. Cov dej tawv tawv yog cov dej uas muaj cov calcium uas yaj thiab magnesium ntau ntau, uas ua rau muaj kev scaling thiab lwm yam teeb meem. STPP pab tiv thaiv kev tsim cov nplai los ntawm kev khi rau cov zaub mov no, tiv thaiv lawv los ntawm kev cuam tshuam nrog lwm cov minerals lossis tshuaj lom neeg hauv dej.

STPP kuj tseem siv tau rau hauv ntau cov tshuaj ntxuav tes thiab tshuaj ntxuav vim nws cov dej softening. Thaum ntxiv rau dej, nws tuaj yeem tshem tawm thiab tshem tawm cov dej tawv ions, txhim kho kev ua haujlwm ntawm cov tshuaj ntxuav tes. STPP kuj ua raws li cov surfactant, pab ua kom cov roj, roj, thiab lwm yam organic teeb meem uas tuaj yeem txhaws cov kav dej thiab cuam tshuam rau kev kho dej khib nyiab.

Sodium tripolyphosphate siv hauv kev kho dej kuj tseem siv tau los tiv thaiv corrosion ntawm cov kav dej hlau thiab cov khoom siv hauv cov txheej txheem kho dej. Nws ua raws li tus neeg sawv cev chelating, khi rau cov hlau ions thiab tsim cov complexes uas tsis tshua muaj corrode. Corrosion tuaj yeem ua rau cov khoom siv tsis ua haujlwm, uas tuaj yeem ua rau dej paug thiab lwm yam kev phom sij.