Hydroxypropyl Methylcellulose bayanan fasaha
Anan akwai tebur da ke bayyana wasu bayanan fasaha na gama gari don hydroxypropyl methylcellulose (HPMC):
| Dukiya | Daraja |
|---|---|
| Tsarin sinadaran | Samfurin Cellulose |
| Tsarin kwayoyin halitta | (C6H7O2(OH)xm(OCH3)yn(OCH2CH3)z)n |
| Kewayon nauyin kwayoyin halitta | 10,000 - 1,500,000 g/mol |
| Bayyanar | Fari zuwa kashe-fari foda |
| Solubility | Mai narkewa a cikin ruwa, maras narkewa a cikin kaushi na kwayoyin halitta |
| Danko mai iyaka | 5 - 100,000 mPa·s (dangane da darajar danko da maida hankali) |
| Gelation zazzabi kewayon | 50-90 ° C (dangane da danko sa da maida hankali) |
| pH girma | 4.0 - 8.0 (Maganin 1%) |
| Danshi abun ciki | ≤ 5.0% |
| Asha abun ciki | 1.5% |
| Karfe masu nauyi | ≤ 20 ppm |
| Iyakar ƙananan ƙwayoyin cuta | ≤ 1,000 cfu/g don jimlar ƙananan ƙwayoyin cuta na aerobic; ≤ 100 cfu/g don jimlar yisti da ƙura |
| Ragowar kaushi | Ya dace da USP 467 |
| Rarraba girman barbashi | 90% na barbashi suna cikin 80-250 µm |
| Rayuwar rayuwa | Shekaru 2-3 lokacin da aka adana shi a wuri mai sanyi, bushe |
Yana da mahimmanci a lura cewa waɗannan bayanan fasaha na iya bambanta dangane da takamaiman sa da masana'anta na HPMC. Ana ba da shawarar koyaushe don tuntuɓar ƙayyadaddun samfuran da masana'anta suka bayar don takamaiman samfurin da kuke amfani da su.
Lokacin aikawa: Maris-04-2023