Sodium phosphate: piav qhia, daim ntawv thov, cuam tshuam rau lub cev

2024 Tus sau: Isabella Gilson | [email protected]. Kawg hloov kho: 2024-01-02 16:20

Sodium phosphate (colloquial, raug: sodium phosphate, orthophosphate, pob txha phosphate los yog Na _{3 PO} 4_{) - dawb hygroscopic nruab nrab ntsev, thermally ruaj khov thiab yaj yam tsis muaj decomposition (ntawm qhov kub ntawm 250 degrees thiab saum toj no). Nws dissolves nyob rau hauv dej, tsim ib tug heev alkaline ib puag ncig.}

Sodium phosphate yog tau los ntawm kev ua ntawm alkali ntawm phosphoric acid (neutralization), thaum lub sij hawm lub cev qhuav dej ntawm sodium hydroorthophosphates.

Siv ua emulsifiers thiab pH regulators thiab anti-caking agents. Sodium phosphate yog siv los ntawm detergent manufacturers. Tshwj xeeb tshaj yog feem ntau siv triphosphate, uas tuaj yeem ncav cuag 50% hauv cov hmoov. Txhawm rau kom cov dej softening (tshem tawm hardness), cov khoom dehydrated yog siv, uas tsim ib tug complex nrog ib tug xov tooj ntawm hlau (magnesium, calcium, barium, thiab lwm yam). Sodium phosphate (tshuaj, nyob rau hauv lub npe "B") yog siv nyob rau hauv kev tsim cov iav, xim, thiab nyob rau hauv lub enrichment ntawm ores. Tab sis Na₂HPO₄•12H_{2O (khoom noj khoom haus, hom "A") siv feem ntau hauv kev lag luam zaub mov ua hmoov ci. Nws txhim kho qhov sib xws ntawm condensed mis nyuj, cheeses, sausages. sivsodium phosphate rau electrophoresis (electrolytic txheej txheem) thiab yees duab (raws li tus tsim tawm tivthaiv).}

Cia peb saib ze ze ntawm orthophosphates.

Sodium tripolyphosphate yog tsim nyob rau hauv ob lub cim: "A", "B". Packed tsuas yog nyob rau hauv tshwj xeeb ntim MKR-1, thauj nyob rau hauv nruab (tshwj xeeb) pob zeb wagons. Txee lub neej unlimited.

Trinatrium phosphate (sodium phosphate, trisubstituted) yog siv rau hauv cov khoom noj, cov ntaub so ntswg thiab ntawv, hauv lub zog, hauv kev tsim cov hmoov, ntxuav pastes, tais detergents thiab ua surfactant hauv kev tsim cov cement. Thaum drilling (roj kev lag luam) nws yog suav nrog raws li ib tug polymer additive. Trisodium phosphate zoo kawg nkaus degreases saum npoo ntawm txhua yam khoom siv, yog li nws yog qhov xav tau rau dej ntws. Nws zoo li cov nplais (pob zeb) nrog cov khoom alkaline, tsis yog nplaim taws. Nws yog nyob rau hauv chav kawm thib ob ntawm kev phom sij rau kev cuam tshuam rau tib neeg lub cev.

Qee ib lo lus nug raug cai: "Nrog rau kev siv dav, puas yog sodium phosphate ua rau peb lub cev?"

Antioxidant (ntawm cov ntawv sau npe E-300 (thiab mus txog E-339) tso cai rau koj kom muaj xim, tsis txhob iab thiab tiv thaiv oxidation. acid paub txhua leej txhua tus), thiab chemically synthesized, tsis pom nyob rau hauv cov xwm Ntxiv rau emulsions uas muaj roj (xws li mayonnaise, ketchup) Ntxiv rau cov khoom ntawm emulsifier thiab stabilizer, Na _{3 PO 4yog tus tuav dej,complexing tus neeg sawv cev, stabilizer. Piv txwv li, nyob rau hauv ci nrog loj ntim (khoom noj mov, bakeries), lub khob noom cookie siab nce yog ib qho tseem ceeb heev, ntxiv rau, nrog ib tug ntxeem tau thiab lub teeb qauv. Ntawm no, cov tshuaj tiv thaiv ntawm sodium bicarbonate thiab phosphoric acid ntsev tsuas yog muab cov nyhuv xav tau thaum kawg. Tshwj xeeb tshaj yog nrov yog kev hloov kho ntawm E-450 (SAPP, sodium pyrophosphate). Cov hmoov ci no ua rau nws muaj peev xwm muab lub khob noom cookie zoo tshaj plaws (qhov siab tshaj plaws hauv kev sib piv nrog cov analogues), uas tseem tshuav tom qab ci. Ntxiv rau muffins, ncuav mog qab zib, gingerbread, pizza, ncuav mog qab zib. Pom zoo rau yuav luag txhua lub khob noom cookie (cov poov xab khov, nplawm, crumbly shortbread).}

Cov khoom tsis zoo ntawm E-450, nrog rau lub peev xwm los khi calcium, yog siv hauv cov khoom noj mis nyuj. Pyrophosphates muaj cov nyhuv tshwj xeeb ntawm casein - nws qhib, swells thiab ua raws li emulsifier, uas yooj yim thaum npaj cov paj npleg, cov khoom noj siv mis, thiab khoom qab zib. Condensed mis nyuj, tau los ntawm extracting dej, kuj tsis ua tsis muaj ntsev-stabilizer DSP (disubstituted sodium phosphate).

Nyob hauv kev lag luam nqaij, ua tsaug rau cov emulsifiers peb tab tom tham, lawv ua rau cov txiaj ntsig tag nrho ntawm cov khoom thaum ua kom ruaj khov thiab txhim kho xim.

Nws yog qhov zoo dua los txwv kev siv cov khoom uas muaj sodium phosphates (los yog npaj nrog lawv siv), vim tias kev khi sai ntawm calcium ua rau lub cev tsis txaus. Tsis tas li ntawd, cov tshuaj no yog ib feem ntawm laxatives, yog li ntau dhaucov hnyuv ntxwm tuaj yeem cuam tshuam lub plab zom mov.