Hydroxypropyl Methylcellulose faʻamatalaga faʻapitoa
Ole laulau lea o lo'o fa'amatalaina ai nisi fa'amatalaga fa'apitoa masani mo le hydroxypropyl methylcellulose (HPMC):
| Meatotino | Taua |
|---|---|
| Fa'asologa o vaila'au | Cellulose e maua mai |
| fua mole | (C6H7O2(OH)xm(OCH3)yn(OCH2CH3)z)n |
| Fuafuaga mamafa molekala | 10,000 – 1,500,000 g/mol |
| Fa'aaliga | Pa'epa'e i le pa'epa'e pa'epa'e |
| Solubility | Solu i le vai, e le mafai ona solu i solu organic |
| Viscosity laina | 5 – 100,000 mPa·s (fa'alagolago i le viscosity grade ma le fa'atonuga) |
| Va'aiga vevela gelation | 50 – 90°C (fa'alagolago ile viscosity grade ma le fa'atonuga) |
| pH va'aiga | 4.0 – 8.0 (1% fofo) |
| Susū i totonu | ≤ 5.0% |
| mea efuefu | ≤ 1.5% |
| Metala mamafa | ≤ 20 ppm |
| tapula'a microbial | ≤ 1,000 cfu/g mo le faitau aofa'i ole microbial aerobic; ≤ 100 cfu/g mo le aofa'i fa'afefete tu'ufa'atasi ma fa'ameamea |
| Solivai totoe | Fa'atasi ma le USP 467 |
| Tufatufaina o le lapopoa | 90% o vaega o lo'o i totonu ole 80 – 250 µm |
| Ola fa'asa | 2-3 tausaga pe a teuina i se nofoaga malulu ma mago |
E taua le maitauina o nei faʻamatalaga faʻapitoa e mafai ona fesuisuiaʻi e faʻatatau i le vasega maʻoti ma le gaosiga o le HPMC. E fautuaina i taimi uma e faʻafesoʻotaʻi faʻamatalaga o oloa na tuʻuina atu e le kamupanī mo le oloa faʻapitoa o loʻo e faʻaaogaina.
Taimi meli: Mati-04-2023