Sigma-Aldrich 191884 Hydroxypropyl cellulose average Mw ~100,000, powder, 20 mesh particle size (99% through) 250 gr
| Sigma-Aldrich 191884 Hydroxypropyl cellulose 250 gr |
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CAS Number: 9004-64-2
MDL number: MFCD00132688
NACRES: NA.23
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PROPERTIES
description biological oxygen demand (BOD) 14,000 ppm
Quality Level 200
form powder
autoignition temp. 752 °F
mol wt average Mw ~100,000
impurities <5 wt. %
particle size 20 mesh (99% through)
pH 5.0-8.5
interfacial tension mineral oil 12.5 dyn/cm, 0.1 wt. % in H2O (vs. mineral oil)
viscosity 65-175 cP, 5 wt. % in H2O(25 °C, Brookfield, spindle #1) (30 rpm)(lit.)
solubility polar organic solvents: soluble
density 0.5 g/mL at 25 °C (lit.)
DESCRIPTION
General description
Hydroxypropyl cellulose (HPC) is a neutral polysaccharide prepared by reacting propylene oxide with alkali cellulose at high temperatures and pressure. It is soluble in water and many polar organic solvents. HPC is widely used as a food additive and in drug delivery systems.
Application
Hydroxypropyl cellulose can be used in the following applications:
HPC is soluble in organic solvents which makes it suitable for the preparation of polymer gel electrolytes for electrochemical devices. The network-forming ability of HPC can improve the mechanical and electrical properties of gel electrolytes.
Electrospun hydroxypropyl cellulose nanofibres can be used to develop drug delivery systems for a variety of hydrophobic drugs.
Hydroxypropylcellulose combined with an effervescent agent like sodium carbonate can be usedas a binder and functional material to prepare floating tablets for thecontrolled release of ofloxacin.
Packaging
5, 100, 250 g in poly bottle
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