Khoom Taw Qhia
PVP K30 Hmoov kuj tseem hu ua polyvinylpyrrolidone K30, PVP K30 lossis polyvidone K30. Nws yog macromolecule polymer ua los ntawm N-VinyPyrrolidone (NVP) los ntawm polymerization. Tus lej K hais txog lub cev hnyav hnyav ntawm povidone, tus nqi K siab dua txhais tau tias hnyav dua cov qauv molecular. Povidone K30' lub ntsiab lus hnyav molecular yog 40000. Cov khoom no yog dawb kom tawm dawb hmoov, tsis muaj ntxhiab, tsis qab, soluble hauv dej thiab ethanol, tsis yaj hauv acetone lossis ether. Nws cov mis mos molecular yog (C6H9NO) n, thiab nws tus lej CAS yog 9003-39-8.
Nta
PVP K30 Hmoov muaj qhov xwm txheej hygroscopic nrog cov nplaum zoo, thiab nws muaj tus nqi PH ruaj khov thiab muaj peev xwm los tsim cov yeeb yaj kiab pob tshab. Nws yog dav siv hauv zaub mov, tshuaj, tshuaj pleev ib ce, kev lag luam thiab lwm yam.
Daim Ntawv Pov Thawj Kev Ntsuam Xyuas
| Yam khoom | Kev qhia tshwj xeeb | Kev Ntsuam Xyuas |
| Tshwm sim | Dawb kom tawm dawb, hygroscopic hmoov lossis flakes. | Ua raws |
| PH （1 → 20 | 3.0～7.0 | 3.5 |
| Dej | ≤5.0 | 2.10% |
| Qhov seem ntawm qhov hluav taws kub | ≤0.1% | Ua raws |
| Coj | 10ppm ua | Ua raws |
| Aldehydes | ≤0.05% | 0.02% |
| Hydrazine | 1ppm ua | ＜ 1ppm ib |
| Vinylpyrrolidinone | ≤0.2% | ＜0.2% |
| 2-pyrrolidinone | ≤0.3% | 1.70% |
| Peroxides (raws li H.2O2) | 400ppm / feeb | 79 pwm |
| K-tus nqi | 27.0～32.4 | 29 |
| Kev Ntsuas (Nitrogen) | 11.5%～12.8% | 12.10% |
| TAMC | ³10³cfu/g | 20 cfu/g |
| TYMC | ²10²cfu/g | 10 cfu/g |
| E.Coli | Tsis zoo hauv 1g | Tsis zoo |
Daim ntawv thov
Vim nws cov yam ntxwv nplaum thiab dej zoo thiab cawv daws tau zoo, povidone K30 tuaj yeem siv dav ua,
1. Cov nplaum.
2. Binder rau cov ntsiav tshuaj, tsiav tshuaj thiab granules.
3. Tus neeg saib xyuas txheej.
4. Zaj duab xis tsim tus neeg sawv cev.
5. Bioavailability enhencing tus neeg sawv cev.
6. Tus neeg saib xyuas kev ruaj ntseg tshuaj.
7. Zaub mov ruaj khov.