Sodium phosphate yog ib qho inorganic compound nrog cov tshuaj formula Na3PO4 thiab yog phosphate. Sodium phosphate tuaj nyob rau hauv ob hom: anhydrous thiab hydrated. Qhov ntau tshaj plaws yog dodecahydrate, Na3PO4·12H2O, uas yog dawb crystalline hmoov. Sodium phosphate yuav luag tag nrho decomposed rau hauv disodium hydrogen phosphate thiab sodium hydroxide nyob rau hauv dej, thiab nws cov kua aqueous yog alkaline. Sodium phosphate yooj yim deliquesces thiab huab cua hauv huab cua qhuav, tsim sodium dihydrogen phosphate thiab sodium bicarbonate.
Cov kab ntau lawm ntawm sodium phosphate feem ntau yog tsim los ntawm cov tshuaj tiv thaiv neutralization ntawm phosphoric acid thiab soda tshauv los tsim disodium hydrogen phosphate, uas yog tom qab ntawd neutralized nrog caustic soda thiab refined. Nws tseem tuaj yeem tau txais los ntawm cov tshuaj tiv thaiv nruab nrab ntawm thermal phosphoric acid thiab caustic soda, tom qab ntawd txias, crystallization, sib cais thiab ziab. Cov kab ntau lawm sodium phosphate yuav tsum tswj cov tshuaj tiv thaiv kub, lub sij hawm, concentration thiab lwm yam kev mob los xyuas kom meej cov khoom zoo thiab stability. Sodium phosphate cov kab ntau lawm kuj yuav tsum tau them sai sai rau kev tiv thaiv cov plua plav paug thiab cov dej pov tseg kom txo tau qhov cuam tshuam rau ib puag ncig.
Sodium phosphate muaj ntau yam kev siv, feem ntau hauv cov hauv qab no:
Hauv kev ua zaub mov, sodium phosphate tuaj yeem siv los ua cov khoom lag luam zoo, uas tuaj yeem txhim kho cov txheej txheem hlau ions, pH tus nqi, ionic zog, thiab lwm yam ntawm cov khoom noj, yog li txhim kho lub zog khi thiab dej tuav cov zaub mov. Peb lub teb chaws tau hais tias nws tuaj yeem siv rau hauv cheese, nrog kev siv ntau tshaj 5g / kg; Nyob rau hauv Western-style nqaij npua, nqaij, ntses, cw thiab roob ris, qhov siab tshaj plaws yog 3.0g / kg; hauv cov kaus poom, kua txiv hmab txiv ntoo, dej haus thiab khoom noj siv mis, qhov siab tshaj plaws yog 0.5g / kg.
Hauv textile, luam ntawv thiab dyeing, papermaking, lub zog tsim, tshuaj thiab lwm yam lag luam, sodium phosphate feem ntau yog siv los ua dej softener thiab boiler cleaner, nrog rau cov hlau xeb tshem tawm, cov kua qab zib purifier thiab coagulant rau roj hmab latex.
Hauv kev kho mob, sodium phosphate tuaj yeem siv los ua cov tshuaj radioactive los kho polycythemia vera, qhov tseem ceeb thrombocythemia, mob myelogenous leukemia, mob lymphocytic leukemia, thiab lwm yam. Nws kuj yog siv rau hauv cov kab mob neurological. Daim ntawv thov kev kho mob rau mob dermatitis, mob eczema, capillary hlav, keloids, pterygium, pob txha neovascularization, plasmacytoma, thiab lwm yam.
Hauv kev lag luam tshuaj txhua hnub, sodium phosphate tuaj yeem siv los ua cov tshuaj txhuam hniav ntxiv. Nws tuaj yeem tsim cov colloid nrog calcium hydrogen phosphate thiab ua lub luag haujlwm ruaj khov. Nws tseem tuaj yeem siv los tsim cov tshuaj ntxuav tes thiab tsim cov tshuaj zawv plaub hau thiab lwm yam khoom.
Kev tiv thaiv ib puag ncig ntawm sodium phosphate feem ntau yog nyob ntawm seb nws yuav ua rau muaj teeb meem xws li eutrophication ntawm lub cev dej, acidification ntawm av, thiab tsub zuj zuj ntawm cov kab mob thaum siv. Sodium phosphate nws tus kheej yog cov khoom tsis muaj tshuaj lom, tab sis yog tias nws tso tawm ntau dhau rau hauv lub cev dej, nws yuav ua rau cov ntsiab lus phosphorus hauv dej, yog li txhawb kev loj hlob ntawm algae, ua rau algae blooms, hypoxia, deterioration ntawm dej zoo, thiab lwm yam. ., cuam tshuam rau dej ecosystem. tshuav nyiaj li cas. Yog li ntawd, kev siv thiab tso tawm ntawm sodium phosphate yuav tsum nruj me ntsis tswj thiab saib xyuas kom tsis txhob muaj qhov tshwm sim ntawm eutrophication ntawm lub cev dej. Qhov cuam tshuam ntawm sodium phosphate ntawm cov av feem ntau yog nyob ntawm nws cov decomposition thiab transformation nyob rau hauv cov av. Feem ntau hais lus, sodium phosphate yuav raug siv los ntawm adsorption, nag lossis daus, hydrolysis, nqus thiab lwm yam txheej txheem hauv av. Nws yuav tsis ua teeb meem ntawm av acidification. Ntawm qhov tsis sib xws, nws yuav Nws yuav muab cov txiaj ntsig phosphate chiv thiab txhawb cov nroj tsuag kev loj hlob. Txawm li cas los xij, yog tias cov sodium phosphate siv ntau dhau lawm, cov ntsiab lus phosphorus hauv av yuav dhau qhov kev xav tau ntawm cov nroj tsuag, ua rau pov tseg thiab poob ntawm phosphorus, thiab tej zaum yuav cuam tshuam rau kev ua haujlwm thiab ntau haiv neeg ntawm cov kab mob hauv av. Qhov cuam tshuam ntawm sodium phosphate rau cov kab mob muaj sia nyob tsuas yog nyob ntawm nws cov metabolism thiab tso tawm hauv lub cev. Feem ntau hais lus, sodium phosphate yuav hydrolyzed rau hauv phosphoric acid thiab sodium ions nyob rau hauv lub cev. Phosphoric acid yog ib qho tseem ceeb ntawm lub cev muaj sia thiab koom nrog lub zog metabolism. , kev ua haujlwm enzyme, teeb liab hloov pauv thiab lwm yam haujlwm hauv lub neej, sodium ions yog cov khoom tsim nyog los tswj cov osmotic siab, paj hlwb impulse, nqaij contraction thiab lwm yam haujlwm ntawm lub cev. Yog li, qhov tsim nyog ntawm sodium phosphate muaj txiaj ntsig zoo rau lub cev. Txawm li cas los xij, yog tias kev noj cov sodium phosphate loj dhau, nws yuav ua rau qhov tsis txaus ntawm phosphorus thiab sodium hauv lub cev, ua rau hyperphosphatemia, hypernatremia, calcium thiab phosphorus deposition, lub raum ua haujlwm puas tsuaj, kub siab thiab lwm yam teeb meem, cuam tshuam rau lub cev. lub cev noj qab haus huv.
Nyob rau hauv cov ntsiab lus, sodium phosphate yog ib tug dav siv inorganic compound nrog ntau yam kev siv thiab kev ua haujlwm, tab sis nws tseem yuav tsum tau ua tib zoo saib xyuas nws cov kev cuam tshuam rau ib puag ncig thiab cov kab mob, thiab tsim nyog tswj nws siv thiab emissions kom paub txog kev siv sodium. phosphate. Kev siv tau ruaj khov.
