Hydroxypropyl Methylcellulose data imọ-ẹrọ
Eyi ni tabili ti n ṣalaye diẹ ninu data imọ-ẹrọ ti o wọpọ fun hydroxypropyl methylcellulose (HPMC):
| Ohun ini | Iye |
|---|---|
| Ilana kemikali | Cellulose itọsẹ |
| Ilana molikula | (C6H7O2(OH)xm(OCH3)yn(OCH2CH3)z)n |
| Iwọn iwuwo molikula | 10,000 - 1,500,000 g / mol |
| Ifarahan | Funfun si pa-funfun lulú |
| Solubility | Tiotuka ninu omi, insoluble ni Organic solvents |
| Ibiti iki | 5 - 100,000 mPa·s (da lori ipele iki ati ifọkansi) |
| Gelation iwọn otutu ibiti | 50 - 90 ° C (da lori ipele iki ati ifọkansi) |
| pH iwọn | 4.0 – 8.0 (1% ojutu) |
| Ọrinrin akoonu | ≤ 5.0% |
| Eeru akoonu | ≤ 1.5% |
| Awọn irin ti o wuwo | 20 ppm |
| Makirobia ifilelẹ | ≤ 1,000 cfu/g fun lapapọ aerobic makirobia kika; ≤ 100 cfu/g fun lapapọ ni idapo iwukara ati molds |
| Awọn olomi ti o ku | Ni ibamu pẹlu USP 467 |
| Patiku iwọn pinpin | 90% ti awọn patikulu wa laarin 80 - 250 µm |
| Igbesi aye selifu | Awọn ọdun 2-3 nigbati a fipamọ sinu ibi ti o tutu, ti o gbẹ |
O ṣe pataki lati ṣe akiyesi pe data imọ-ẹrọ wọnyi le yatọ si da lori ipele kan pato ati olupese ti HPMC. A ṣe iṣeduro nigbagbogbo lati kan si awọn pato ọja ti olupese pese fun ọja kan pato ti o nlo.
Akoko ifiweranṣẹ: Mar-04-2023