Tripotassium phosphate K3PO4 CAS 7778-53-2 qib zaub mov
Kev piav qhia txog khoom
Potassium phosphate yog ib yam khoom siv uas muaj peev xwm ua kom cov dej noo ntau, nws ua haujlwm ua tus neeg sawv cev rau kev tswj pH, Feem ntau siv ua ib feem rau ntau yam khoom siv hauv kev cog qoob loo ntawm cov kab mob me me, ua ib feem hauv phosphate buffered saline (PBS). Nws tshwm sim hauv ntau hom: monobasic, dibasic, thiab tribasic (K3PO4). Feem ntau pH neutral potassium phosphate buffer solutions muaj cov khoom sib xyaw ntawm cov monobasic thiab dibasic daim ntawv rau ntau qib, nyob ntawm pH xav tau. Gomori buffers, feem ntau siv phosphate buffers, muaj cov khoom sib xyaw ntawm monobasic dihydrogen phosphate thiab dibasic monohydrogen phosphate. Los ntawm kev hloov pauv ntawm txhua ntsev, ntau yam buffers tuaj yeem npaj tau uas buffer zoo ntawm pH 5.8 thiab pH 8.0 (thov saib cov lus hauv qab no). Phosphates muaj peev xwm ua kom cov dej noo ntau heev thiab yaj tau zoo hauv dej.
Cov Khoom Siv
Lub Npe Khoom: Potassium phosphate
CAS:7778-53-2
MF: K3PO4
MW:212.266261
EINECS:231-907-1
Pawg Khoom: cov hlau phosphate compound; Khoom Noj
Melting point: 1340 ° C
Qhov Ceev: 2.564 g/mL ntawm 25 °C (lit.)
Kev yaj: dej: yaj tau 100mg / mL, ntshiab, tsis muaj xim
Daim Ntawv: Khoom
Xim: Dawb
Rhiab: Hygroscopic
Daim Ntawv Thov
1) Potassium phosphate yog ib yam khoom uas tswj cov kua qaub thiab ua kom cov hlau ions sib txuas ua ke. Nws tiv thaiv kom cov hlau tsis qhuav thiab siv los ua ib yam khoom uas ua kom cov kua qaub ruaj khov hauv cov hmoov thiab tiv thaiv kom tsis txhob muaj cov pob ua ke. Nws ua rau cov tshuaj antioxidants ua haujlwm ntau dua.
2) Hauv kev lag luam khoom noj (Cov khoom noj ntxiv), nws yog siv ua emulsifier, potassium fortifier, flavoring agent, nqaij binder. Potassium phosphate pab kom ruaj khov, tuab thiab tswj cov acidity thiab noo noo hauv cov khoom noj. Raws li cov kev cai ntawm FAO (1984), nws daim ntawv thov thiab qhov tsawg yog raws li hauv qab no: instant broth; tag nrho cov ntsev phosphate: 1000 mg/kg (xam raws li P2O5); nqaij npuas siav, nqaij npuas, nqaij minced siav 3g/kg (ib zaug siv lossis ua ke nrog lwm cov phosphate, xam raws li P2O5); mis nyuj hmoov tsawg concentrated, mis nyuj condensed, dilute cream: 2 g/kg (ib zaug siv); ua ke nrog lwm cov stabilizer: 3 (xam raws li anhydrous substance); mis nyuj hmoov, ua tiav cheese: 5g/kg; ua tiav cheese, tag nrho cov phosphate 9g/kg (xam raws li phosphorus); dej txias: 2g/kg (ib zaug siv lossis ua ke nrog lwm cov phosphate, xam raws li P2O5).
3) Nws siv tau rau kev npaj cov khoom pasta nrog dej alkaline. Nws siv tau rau kev tsim cov xab npum ua kua, daim ntawv zoo, roj av refined, daim ntawv zoo, ua cov phosphorus thiab potassium chiv. Nws siv tau ua cov dej boiler softener. Kuj siv rau hauv tshuaj. Potassium phosphate qee zaum siv ua tshuaj. Nws tuaj yeem muaj cov nyhuv diuretic thiab ua raws li laxative thaum siv rau hauv cov tshuaj ntau. Txawm li cas los xij, phosphorus tuaj yeem cuam tshuam nrog qee cov tshuaj, suav nrog corticosteroids thiab potassium-sparing diuretics, ua rau muaj kev pheej hmoo rau cov teebmeem tsis zoo; tsuas yog siv nws thaum tus kws kho mob qhia kom ua li ntawd.
4) Nws siv tau ua analytical reagent, buffer thiab softener.
Cov ntaub ntawv txog kev thauj mus los
Tus lej UN: 1805
Qib Kev Phom Sij: 9
Pawg Ntim Khoom: III
Tus lej HS: 28352400
Cov Lus Qhia Tshwj Xeeb
| Lub Npe | Cov Ntawv Qhia | |
| Pawg | Qib kev txawj | Qib zaub mov |
| Qhov tsos | hmoov dawb hygroscopic | |
| Cov ntsiab lus tseem ceeb% ≥ | 98.0 | 98.0 |
| P2O5% ≥ | 32.8 | 32.8 |
| Potassium oxide (K)2O%≥) | 65.0 | 65.0 |
| Tus nqi pH (1% kua dej) | 11.5-12.5 | 11.5-12.5 |
| Cov dej tsis yaj hauv dej% ≤ | 0.1 | 0.05 |
| Hlau hnyav (Pb)% ≤ | - | 0.001 |
| Arsenide (Raws li)% ≤ | - | 0.0003 |
| Fluorine (F)% ≤ | 0 | 0.003 |
| Kev zoo (dhau 60 mesh sieve)% ≥ | 90.0 | 90.0 |
